cfd thesis topics

• Carlsson, M. "Towards Improved Scale-Resolving Modeling and Simulations of Turbulent Flows", PhD thesis, Division of Fluid Dynamics, Dept. of Mechanics and Maritime Sciences, Chalmers University of Technology, Gothenburg, Sweden, December 2022. View PDF file of thesis  
• Ottersten, M. "Investigation of tonal noise sources from centrifugal fan using detached eddy simulation", PhD thesis, Division of Fluid Dynamics, Dept. of Mechanics and Maritime Sciences, Chalmers University of Technology, Gothenburg, Sweden, October 2022. View PDF file of thesis  
• Vasudevan, S. "Subcooled boiling flow in liquid-cooled internal combustion engines", PhD thesis, Division of Fluid Dynamics, Dept. of Mechanics and Maritime Sciences, Chalmers University of Technology, Gothenburg, Sweden, September 2022. View PDF file of thesis  
• Ottersten, M. "Numerical investigation of tonal noise sources from centrifugal fan", thesis of Lic. of Engng, Division of Fluid Dynamics, Dept. of Mechanics and Maritime Sciences, Chalmers University of Technology, Gothenburg, Sweden, April 2020. View PDF file of thesis  
• Vasudevan, S. "Precision cooling for C02 reduction", thesis of Lic. of Engng, Division of Fluid Dynamics, Dept. of Mechanics and Maritime Sciences, Chalmers University of Technology, Gothenburg, Sweden, Dec 2019. View PDF file of thesis  
• Matsfelt, J. "Large Eddy Simulation of clearings in forest and their effect on wind turbines", thesis of Lic. of Engng, Division of Fluid Dynamics, Dept. of Mechanics and Maritime Sciences, Chalmers University of Technology, Göteborg, Sweden, 2018. View PDF file of thesis  
• Arvidson, S. "Methodologies for RANS-LES interfaces in turbulence-resolving simulations", PhD thesis, Division of Fluid Dynamics, Dept. of Mechanics and Maritime Sciences, Chalmers University of Technology, Göteborg, Sweden, 2017. View PDF file of thesis  
• Bäckar, J.-A.. "Robust Numerical Wall Functions Implemented in OpenFOAM -- new recommendations for near-wall resolution using low-Reynolds-number turbulence models", thesis of Lic. of Engng, Division of Fluid Dynamics, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, 2016. View PDF Licentiate thesis View journal paper Download the OpenFOAM code with numerical wall functions  
• Abedi, H. "Development of Vortex Filament Method for Wind Power Aerodynamics", PhD thesis, Division of Fluid Dynamics, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, 2016. View PDF file of thesis  
• Nebenführ, B. "Turbulence-resolving simulations for engineering applications", PhD thesis, Division of Fluid Dynamics, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, 2015. View PDF file of thesis  
• Bovo, M. "Principles of Heat Transfer in Internal Combustion Engines from a Modeling standpoint", PhD thesis, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, 2014. View PDF file of thesis View PDF file of paper II View PDF file of paper III  
• Andersson, B. "Modeling and simulation of rotary bell spray atomizers in automotive paint shops", PhD thesis, Division of Fluid Dynamics, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, 2013. View PDF file of thesis View PDF file of paper IV  
• Abedi, H. "Development of Vortex Filament Method for Aerodynamic Loads on Rotor Blades", thesis of Lic. of Engng, Division of Fluid Dynamics, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, 2013. View PDF file of thesis View PDF file of Paper I View PDF file of Licentiate presentation  
• Arvidson, S. "Assessment and Some Improvements of Hybrid RANS-LES Methods", thesis of Lic. of Engng, Division of Fluid Dynamics, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, 2013. View thesis  
• El-Alti, M. "Active Flow Control for Drag Reduction of Heavy Vehicles", PhD thesis, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, 2012. View thesis  
• Nebenführ, B. "Aerodynamic and Aeroacoustic Analysis of a Multi-Element Airfoil using Hybrid RANS/LES Modeling Approaches", thesis of Lic. of Engng, Division of Fluid Dynamics, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, 2012. View PDF file of thesis Paper I View PDF file of Paper II  
• Andersson, B. "Droplet Breakup in Automotive Spray Painting", thesis of Lic. of Engng, Division of Fluid Dynamics, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, 2012. View PDF file of thesis  
• Bovo, M. "On the numerical modelling of impinging jets heat transfer", thesis of Lic. of Engng, Divison of Combusion and Division of Fluid Dynamics, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, 2011. View PDF file of thesis  
• Sass-Tisovskaya, M. "Plasma Arc Welding Simulation with OpenFOAM", thesis of Lic. of Engng,, Division of Fluid Dynamics, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, 2009. View PDF file of thesis  
• El-Alti, M. "Active Flow Control for Aircrafts and Heavy Vehicles", thesis of Lic. of Engng,, Division of Fluid Dynamics, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, 2009. View Paper 1 View Paper 2 View Paper 3 View Paper 4 Paper View PDF file of thesis  
• Tivert, T. "Computational study of rivulets using Volume of Fluid", thesis of Lic. of Engng,, Division of Fluid Dynamics, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, 2009. View PDF file of thesis  
• Hemida, H. "Numerical Simulations of Flows Around Trains and Buses in Cross Winds", PhD thesis, Division of Fluid Dynamics, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, 2008. View PDF file of thesis  
• GYLLENRAM, W. "Analytical and Numerical Studies of Internal Swirling Flows", PhD thesis, Division of Fluid Dynamics, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, 2008. View PDF file of thesis  
• ASK, J. "Predictions of Aerodynamically Induced Wind Noise Around Ground Vehicles", PhD thesis, Division of Fluid Dynamics, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, 2008. View PDF file of thesis  
• BARHAGHI, D.G. "A Study of Turbulent Natural Convection Boundary Layers Using Large-Eddy Simulation", PhD thesis, Division of Fluid Dynamics, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, 2007. View PDF file of thesis  
• WOLLBLAD, C. "Transonic flow: large eddy simulation, numerical methods and subgrid modeling", PhD thesis, Division of Fluid Dynamics, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, 2006. View PDF file of thesis  
• SVENINGSSON, A. "Turbulence Transport Modelling in Gas Turbine Related Applications", PhD thesis, Division of Fluid Dynamics, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, 2006. View PDF file of thesis  
• HEMIDA, H. "Large-Eddy Simulation of the Flow around Simplified High-Speed Trains under Side Wind Conditions", thesis of Lic. of Engng, Division of Fluid Dynamics, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, 2006. View PDF file of thesis  
• ANDERSSON, N. "A Study of Subsonic Turbulent Jets and Their Radiated Sound Using Large-Eddy Simulation", PhD thesis, Division of Fluid Dynamics, Dept. of Applied Mechanics, Chalmers University of Technology, Göteborg, 2005. View PDF file of thesis  
• ASK, J. "A Study of Incompressible Flow Fields for Computational Aero Acoustics", thesis of Lic. of Engng, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 2005. View PDF file of thesis  
• WOLLBLAD, C. "Large Eddy Simulation of Transonic Flow with Shock Wave/Turbulent Boundary Layer Interaction", thesis of Lic. of Engng, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 2004. View PDF file  
• BARHAGHI, D.G. "DNS and LES of Turbulent Natural Convection Boundary Layer", thesis of Lic. of Engng, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 2004. View PDF file of thesis View PDF file of corrections  
• BILLSON, M "Computational Techniques for Turbulence Generated Noise", PhD thesis, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 2004.   View PDF file   Errata: View PDF file  
• ANDERSSON, N "A Study of Mach 0.75 Jets and Their Radiated Sound Using Large-Eddy Simulation", thesis of Lic. of Engng, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 2003. View PDF file  
• DAHLSTRÖM, S. "Large Eddy Simulation of the Flow Around a High-Lift Airfoil", PhD thesis, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 2003. View PDF file (39MB)  
• SVENINGSSON, A. "Analysis of the Performance of Different v²-f Turbulence Models in a Stator Vane Passage Flow", thesis of Lic. of Engng, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 2003. View PDF file (41MB)  
• LARSSON, J. "Computational Aero Acoustics for Vehicle Applications", thesis of Lic. of Engng, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 2002. View PDF file (41MB)  
• KRAJNOVIC, S. "Large Eddy Simulations for Computing the Flow Around Vehicles", PhD thesis, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 2002. View PDF file (38MB)  
• NILSSON, H. "Numerical Investigations of Turbulent Flow in Water Turbines", PhD thesis, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 2002. View PDF file (12MB)  
• BREDBERG, J. "Turbulence Modelling for Internal Cooling of Gas-Turbine Blades", PhD thesis, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 2002. View PDF file  
• BILLSON, M. "Computational Techniques for Jet Noise Predictions", Rept. 02/02, thesis of Lic. of Engng, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology., Göteborg, 2002. View PDF file  
• GUSTAFSSON, B. "Experimental Studies of Effusion Cooling", PhD thesis, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 2001. View movie of LDA measurements View PDF-file  
• DAHLSTRÖM, S. "Large Eddy Simulation of the Flow Around a High-Lift Airfoil", Rept. 00/5, thesis of Lic. of Engng, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology., Göteborg, 2000. View PDF file  
• KRAJNOVIC, S "Large Eddy Simulation of the Flow Around a Three-Dimensional Bluff Body", Rept. 00/1, thesis of Lic. of Engng, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 2000.  
• NILSSON, H. "A Numerical Investigation of the Turbulent Flow in a Kaplan Water Turbine Runner", Rept. 99/5, thesis of Lic. of Engng, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 1999. View PDF-files  
• BREDBERG, J. "Prediction of Flow and Heat Transfer Inside Turbine Blades using EARSM, k-eps and k-omega Turbulence Models", Rept. 99/3, thesis of Lic. of Engng, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology., Göteborg, 1999. View PDF file  
• PENG, S.-H. "Modeling of Turbulent flow and Heat Transfer Modelling for Building Ventilation", PhD thesis, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology., Göteborg, 1998. View PDF file  
• SOHANKAR, A. "Numerical Study of Laminar, Transitional and Turbulent Flow Past Rectangular Cyliders", PhD thesis, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology., Göteborg, 1998. View PDF file  
• PERZON, S. "Reynolds Stress Modeling of Flow Separation on Curved Surfaces", Rept. 97/1, thesis of Lic. of Engng, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology., Göteborg, 1997. Thesis: View PDF file Paper III: View PDF file Paper IV: View PDF file  
• EMVIN, P. "The Full Multigrid Method Applied to Turbulent Flow in Ventilated Enclosures Using Structured and Unstructured Grids", PhD thesis, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology., Göteborg, 1997. Thesis: View PDF file  
• SOHANKAR, S. "A Numerical Study of Unsteady Two-Dimensional Flow Around Rectangular Cylinders", Rept. 96/5, thesis of Lic. of Engng., Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 1996. Paper 1: View PDF file Paper 2: View PDF file  
• ZHOU, G. "Numerical Simulations of Physical Discontinuities in Single and Multi-Fluid Flows for Arbitrary Mach Numbers", PhD thesis, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 1995.  
• JANSSON, S. "Turbulence Modelling of Flows Related to Wall-Cooling Application", PhD thesis, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 1994.  
• JOHANSSON, P. "Numerical Simulations of Three-Dimensional Ventilated Enclosures Using a Full Multigrid Method", Rept. 94/4, thesis of Lic. of Engng., Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 1994.  
• ZHOU, G. "Numerical Simulation of Transonic Flows With Special Emphasis on Development of Pressure-Based Methods for Aerodynamic Flows", Rept. 93/4, thesis of Lic. of Engng., Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 1993.  
• SHANKAR, V. "Numerical Investigation of Turbulent Plumes in both Ambient and Stratified Surroundings", Rept. 93/1, thesis of Lic. of Engng., Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 1993.  
• JANSSON, L.S. "Numerical Investigation of Steady and Unsteady Flows Comparing Turbulence Models and Different Near-Wall Models", Rept. 92/1, thesis of Lic. of Engng., Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 1992.  
• JOHANSSON, S. "Numerical Simulation of Vortex Shedding Past Triangular Cylinders", Rept. 91/7, thesis of Lic. of Engng., Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 1991.  
• DAVIDSON, L. "Numerical Simulatioin of Turbulent Flow in Ventilated Rooms", PhD thesis, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Göteborg, 1989. View PDF file

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Editorial article, editorial: recent trends in computational fluid dynamics.

• 1 College of Mathematics and Systems Science, Shandong University of Science and Technology, Qingdao, China
• 2 Department of Mathematics and Computer Science, Transilvania University of Brasov, Brasov, Romania
• 3 Department of Mathematics and Statistics, FBAS, IIU, Islamabad, Pakistan
• 4 Basic Science, Faculty of Engineering, The British University in Egypt, Al-Shorouk City, Egypt

Editorial on the Research Topic Recent Trends in Computational Fluid Dynamics

Computational fluid dynamics (CFD) [ 1 ] can be described as the set of techniques that assist the computer to provide the numerical simulation of the fluid flows. The three basic principles that can determine the physical aspects of any fluid are the i) energy conservation, ii) Newton’s second law, and the iii) mass conservation. These flow problem can be described in terms of these basic laws. Mathematical equations, which are usually in the form of partial differential equations, portrayed the fluid behavior in the flow domain.

The solutions and interactive behavior of solid boundaries with fluid or interaction between the layers of the fluid while flowing are visualized using some CFD techniques. CFD helps replace these differential equations of fluid flow into numbers, and these numbers are beneficial in time and/or space which enable a numerical picture of the complete fluid flow. CFD is powerful in examining a system’s behavior, beneficial, and more innovative in designing a system [ 2 ]. Also, It is efficient in exploring the system’s performance metrics, whether it is for the yielding higher profit margins or in enhancing operational safety, and in various advantageous features [ 3 ].

Nowadays, CFD techniques are usually applied in various fields [ 4 – 8 ] i.e. car design, turbomachinery, ship design, and aircraft manufacturing. Moreover, it is beneficial in astrophysics, biology, oceanography, oil recovery, architecture, and meteorology. Numerous numerical Algorithm and software have been developed to perform CFD analysis. Due to the recent advancement in computer technology, numerical simulation for physically and geometrically complex systems can also be evaluated using PC clusters. Large scale simulations in different fluid flow on grids containing millions and trillions of elements can be achieved within a few hours via supercomputers. However, it is completely incorrect to think that CFD describes a mature technology, there are numerous open questions related to heat transfer, combustion modeling, turbulence, and efficient solution methods or discretization methods, etc. The coupling between CFD and other disciplines required further research, therefore, the main goal of this issue is to fill an essential gap that is greatly missed in this field. We sincerely hope that this issue will be beneficial to the readers to present the recent findings in the field and shed some light on the industrial sector.

Rafique et al. [ 9 ] used Buongiorno model to discuss the Casson nanofluid boundary layer flow through an inclined surface under the impact of Dufour and Soret. This nonlinear model is beneficial to understand the mechanism of heat and mass transfer by contemplating various essential features of the proposed boundary layer. Further, the Keller-box technique has been used to simulate the results. The results show that the Dufour effect has a strong impact on the temperature profile and that the thermophoresis produces an inverse impact on the concentration profile as compared with the temperature profile.

Shah et al. [ 10 ] investigated the CVFEM simulation to determine the nanoparticle’s migration toward a permeable domain. The considered fluid model contains aluminum oxide nanoparticles. Darcy law, thermal radiation, Lorentz force, and shape factor. The proposed approach is beneficial for the two common schemes of CFD. In the proposed study, it was found that higher convection occurs due to the great influence of shape factor. According to the authors' simulation, it was shown that the magnetic field and temperature gradient have an inverse relationship. Later, Shah et al. [ 11 ] studied the behavior of couple stress fluid and non-isothermal convection with magnetic effects over a nonlinear sheet. Analytical simulation with the help of homotopy analysis method has been proposed for the solutions. According to their study, they found that the primary velocity faces significant resistance during the flow. In their proposed simulation, they noticed that magnetic effects produce resistance in the angular velocity, but enhances the temperature profile. Also, the Grashof number and Hall effects show a positive response to the temperature profile.

Shah et al. [ 12 ] contemplated the Mohand decomposition scheme to examine the Kortewege–De Vries equations. The fractional derivatives are expressed by Caputo fractional derivative operator. The validation and effectiveness of this scheme have been determined using numerical examples for integer order and fractional problems. According to their results, they concluded that the proposed scheme is easily adaptable, straightforward, and beneficial to solve nonlinear problems.

Irfan et al. [ 13 ] investigated the magnetized nanofluid motion with variable features propagating through a radiatively stretching sheet. Their proposed scheme was a numerical shooting method and the bvp4c built-in command in MATLAB. It was noticed that the thermophoresis, thermal conductivity, radiation parameter, and Brownian motion boost the thermal boundary layer. Further, in the proposed simulation, it was found that the Prandtl number suppresses the thermal profile. On the other hand, Brownian motion and Lewis numbers were seen to cause a strong influence on concentration profile, whereas the thermophoretic force was seen to produce and opposite effects. Later, Irfan et al. [ 14 ] used computational formulation, i.e., simplified finite difference scheme to establish and discuss the effects of porosity, thermal radiation, a magnetic and electric field with heat generation and absorption. A comparative study is also given using the simplified finite difference scheme and bvp4c where it was noticed that the model has a higher convergence rate.

Shafiq et al. [ 15 ] examined and discussed the motion of carbon nanotubes (CNTs) (single- and multi-walled) over a Riga plate. The Riga plate is filled with water as a base fluid. They used the Marangoni model for the fully developed electro-magnetohydrodynamics flow. They proposed homotopy analysis method for the graphical and numerical outcomes. They noticed that multi-walled CNTs have higher velocity as compared with single-walled CNTs. They found similar outcomes of the magnetic field on temperature as already done by Shah et al. [ 11 ].

Bilal et al. [ 16 ] used a similar scheme used by Rafique et al. [ 9 ] to examine flow behavior betwixt a pair of rotating disks. They used the theory of the Cattaneo–Christov and Darcy model to formulate the proposed formulation. Further, Karman transformations have been used to model the mathematical modeling and numerical outcomes presented using the finite difference approach. They found that a higher Reynolds number produces resistance in the radial and axial velocities at the lower disk as compared with the upper disk. Further, the thermal profile was reduced due to the strong impact of the Prandtl number. At the lower disk, the shear drag coefficient diminishes while at the upper disk, the wall shear coefficient increases. Later, Ullah et al. [ 17 ] considered a similar geometry [ 16 ] with a three-dimensional Darcy–Forchheimer model and nanofluid flow. A computational shooting scheme was used to operate the proposed formulation. They found that the Darcy–Forchheimer model effects are negligible on the concentration and temperature profile.

Ahmed et al. [ 18 ] analyzed the concealed behavior of thermally radiative and magnetically influenced γ Al 2 O 3 –H 2 O and Al 2 O 3 –H 2 O nanofluid flow through a wedge. Combined simulation of shooting and RK scheme was used to evaluate the numerical outcomes. Their simulation shows that the Hartree pressure gradient significantly enhances the nanofluids velocity. The proposed composition of γ Al 2 O 3 –H 2 O and Al 2 O 3 –H 2 O becomes denser due to the strong impact of volume fraction and accordingly opposes the velocity field. The thermal profile γ Al 2 O 3 –H 2 O and Al 2 O 3 –H 2 O rises for higher volume fraction.

Ahmed and Khan [ 19 ] examined the mechanism of sodium-alginate (C 6 H 9 NaO 7 ) through a vertical heated plate with acceleration. Further, they contemplated the effects of convection and discussed the entropy generation. Laplace transforms with a combination of integral transforms that were used to generate the exact results. It was concluded that the maximal entropy can be achieved by taking higher values of Brinkmann number, fluid parameter, and Grashof number. It was also noticed that the Bejan number can also be maximal if the Prandtl number is high. The proposed fluid model reveals a dual impact.

Bhatti et al. [ 20 ] performed a theoretical analysis of the blood flow under the suspension of nanoparticles and microorganisms through an anisotropic artery in a sinusoidal form. The authors investigated a nonlinear Sutterby fluid model as blood to examine the rheological effects. A perturbation approach was used to elaborate on the series solutions. In their analysis, it was found that the non-Newtonian effects are in favor to resist the flow. Further, they noticed that the wall shear stress diminishes due to the stenosis, nanoparticle, and thermal Grashof number. Moreover, The Peclet number was found to create resistance in the microorganism profile. The results of this study play a significant role in biomedical engineering. Riaz et al. [ 21 ] presented a study that is beneficial for the urinary tract infections when the flow is sinusoidal. This analysis is essential to examine white particles occurring in the urine. They investigated the flow in a curved configuration with flexible walls and filled with particles in a fluid. A lubrication theory and perturbation approach was used to formulate the governing equations. Further, they also carried out the numerical results for the pressure along the whole channel.

Alzahrani et al. [ 22 ] investigated the magnetohydrodynamics of a 3D flow through a rotating permeable conduit under the effect of Dufour and Soret and viscous dissipation. A viscous electrically-conducting fluid is considered upon which applied a magnetic field. Suitable transformations are used to transform from a nonlinear partial differential system of equations to an ordinary system of equations after which results were computed numerically using the shooting method. Then the pertinent parameters affecting the physical variables of the flow field have been thoroughly investigated.

Sanni et al. [ 23 ] studied the MHD flow of an incompressible Maxwell fluid flow induced by a quadratic stretching sheet through a 2D boundary layer. A variable magnetic field was applied to the flow with heat transfer, thermal radiation, and viscous dissipation. The system of partial differential equations has been transformed into ordinary differential equations (ODEs) by using some similarity variables. Numerical results have been achieved to find solutions to the energy and momentum equations in a closed-form.

Ahmed et al. [ 24 ] studied the peristaltic micropolar fluid flow influenced upon by heat and mass transfer with the magnetic field. The system of governing equations has been presented using a curvilinear coordinate system where they were further reduced using a lubrication approximation. Solutions were then derived by implementing the finite difference method.

Khan et al. [ 25 ] explored the thermal Eyring–Powell nano-liquid with triple diffusion via a periodic-moving system. A combination of some important parameters, such as the porosity parameter and magnetic effect, was also discussed. The Buongiorno’s nanofluid theory was investigated through the thermophoretic and Brownian motion effects. Further, the homotopy algorithm was used in order to analyze the fluid flow in a non-dimensional form.

Karuppusamy et al. [ 26 ] examined an entropy generation of a nanofluid of third-order with slip effect. The flow investigated was caused by a stretchable sheet through a porous plate under the influence of thermal radiation. Several other influential effects were taken into accounts such as the non-Fourier heat flux, convective surface boundary, and nanoparticle concentration on zero mass flux conditions. Similarity variables have been used in order to solve the governing physical system of equations and modify it into a nonlinear system of ODEs. Results were obtained using the usual homotopy algorithm to discuss the outcomes of the analysis.

Author Contributions

MMB and MM drafted the first version of the editorial. AZ and SIA revised the first draft and made contributions about papers they edited.

MMB was supported by the Cultivation Project of Young and Innovative Talents in Universities of Shandong Province (Nonlinear Sciences Research Team).

Conflict of Interest

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

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Keywords: computational fluid dynamics, non-Newtonian/Newtonian fluids, heat and mass transfer, multiphase flow simulations, thermodynamics, nanofluids

Citation: Bhatti MM, Marin M, Zeeshan A and Abdelsalam SI (2020) Editorial: Recent Trends in Computational Fluid Dynamics. Front. Phys. 8:593111. doi: 10.3389/fphy.2020.593111

Received: 09 August 2020; Accepted: 11 September 2020; Published: 01 October 2020.

Edited and reviewed by:

Copyright © 2020 Bhatti, Marin, Zeeshan and Abdelsalam. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

*Correspondence: M. M. Bhatti, [email protected] , [email protected]

This article is part of the Research Topic

Recent Trends in Computational Fluid Dynamics

Machine learning-based CFD simulations: a review, models, open threats, and future tactics

• Published: 25 September 2022
• Volume 34 , pages 21677–21700, ( 2022 )

Cite this article

• Dhruvil Panchigar 1 ,
• Kunal Kar 2 ,
• Shashank Shukla 3 ,
• Rhea Mary Mathew 1 ,
• Utkarsh Chadha   ORCID: orcid.org/0000-0002-5044-3761 1 , 4 &
• Senthil Kumaran Selvaraj   ORCID: orcid.org/0000-0001-9994-9424 1  

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This review targets various scenarios where CFD could be used and the logical parts needed for exemplary computations. The machine learning aspect with algorithms that have been implemented suggests design parameters to an algorithm that can be used for bodies in flights and different research-based algorithms that have been used and outlines the advantages, disadvantages, and tools used for computing the algorithm. Since fluid behavior is quite erratic, a single algorithm may not be versatile in every case. In some cases, multiple algorithms are combined for successful simulations. The uniqueness of the review lies in the combination of algorithms for every different case with theoretical analysis and disadvantages, which could be avoided by clubbing another algorithm that overcomes the problem. Since ML is not fully mature yet to provide high accuracy without bit preprocessing in the form of the numerical method, this is one of the heavy limitations that are briefly discussed.

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Abbreviations

Algorithm with the fuzzy inference system

Artificial inteligance

Adaptive network-based fuzzy inference

Bubble column reactor

Computer-aided design

• Computational fluid dynamics

Computed tomography

Differential evolution-based fuzzy inference system

Discrete element method

Finite element analysis

Genetic algorithm combined with a fuzzy interface system

Gaussian process regression

Low-dimensional ventilation model

Levenberg–Marquardt algorithm

Machine learning genetic algorithm

Radial basis function neural network

Unmanned aerial vehicle

Uncertainty quantification

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Dhruvil Panchigar, Rhea Mary Mathew, Utkarsh Chadha & Senthil Kumaran Selvaraj

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Shashank Shukla

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Panchigar, D., Kar, K., Shukla, S. et al. Machine learning-based CFD simulations: a review, models, open threats, and future tactics. Neural Comput & Applic 34 , 21677–21700 (2022). https://doi.org/10.1007/s00521-022-07838-6

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DOI : https://doi.org/10.1007/s00521-022-07838-6

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Additive manufacturing is revolutionizing the field of medical sciences through its key application in the development of bone scaffolds. During scaffold fabrication, achieving a good level of porosity for enhanced mechanical strength is very challenging. The bone scaffolds should hold both the porosity and load withstanding capacity. In this research, a novel structure was designed with the aim of the evaluation of flexible porosity. A CAD model was generated for the novel structure using specific input parameters, whereas the porosity was controlled by varying the input parameters. Poly Amide (PA 2200) material was used for the fabrication of bone scaffolds, which is a biocompatible material. To fabricate a novel structure for bone scaffolds, a Selective Laser Sintering machine (SLS) was used. The displacement under compression loads was observed using a Universal Testing Machine (UTM). In addition to this, numerical analysis of the components was also carried out. The compressive stiffness found through the analysis enables the verification of the load withstanding capacity of the specific bone scaffold model. The experimental porosity was compared with the theoretical porosity and showed almost 29% to 30% reductions when compared to the theoretical porosity. Structural analysis was carried out using ANSYS by changing the geometry. Computational Fluid Dynamics (CFD) analysis was carried out using ANSYS FLUENT to estimate the blood pressure and Wall Shear Stress (WSS). From the CFD analysis, maximum pressure of 1.799 Pa was observed. Though the porosity was less than 50%, there was not much variation of WSS. The achievement from this study endorses the great potential of the proposed models which can successfully be adapted for the required bone implant applications.

Transient Thrust Analysis of Rigid Rotors in Forward Flight

The purpose of this study was to investigate and quantify the transient thrust response of two small rigid rotors in forward flight. This was accomplished using a distributed doublet-based potential flow method, which was validated against wind-tunnel experimentation and a transient CFD analysis. The investigation showed that for both rotors, advancing and retreating blade effects were predicted to contribute to transient thrust amplitudes of 5–30% of the mean rotor thrust. The thrust output amplitudes of individual rotors blades were observed to be 15–45% of the mean rotor thrust, indicating that it is not uncommon for the thrust output variation of an individual rotor blade to approach the same value as the mean thrust output of the rotor itself. In addition to this, the theoretical analysis also illustrated that higher blade thrust oscillations resulted in pronounced asymmetric rotor wake structures.

Numerical Evaluation of Surface Catalysis on Silica Surface in a Shock Tube Using CFD Analysis

Cfd analysis of the beverli hill turbulence model validation experiments, development and validation of an improved end-to-end cfd analysis and design tool for aircraft engine nacelles., three dimensional cfd analysis of the sprayed liquid flap, export citation format, share document.

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CFD Project Ideas: Exploring Innovations in Computational Fluid Dynamics

• September 12, 2023
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Introduction

Computational Fluid Dynamics (CFD) is a cutting-edge field that plays a pivotal role in solving complex fluid flow problems. It is a multidisciplinary domain that combines engineering, mathematics, and computer science to simulate and analyze fluid behavior. CFD simulations have become increasingly vital in various industries, including aerospace, automotive, renewable energy, and environmental engineering. This article delves into the exciting realm of  CFD project  ideas, providing a diverse range of innovative and impactful projects.

1. Simulating Supersonic Flows for Aerospace Applications

In this project, we explore the world of supersonic flows encountered in aerospace engineering. We can simulate the behavior of airflow around supersonic aircraft, considering factors such as shock waves, boundary layers, and heat transfer. Such simulations can lead to more efficient and safer aircraft designs.

2. Design Optimization of Wind Turbine Blades

CFD simulations can aid in optimizing the design of wind turbine blades for enhanced energy conversion. By studying the flow characteristics and pressure distribution, engineers can create more efficient and durable wind turbines, contributing to sustainable energy solutions.

3. Analysis of Blood Flow in Cardiovascular Models

Understanding blood flow patterns in the human cardiovascular system is crucial for medical research. CFD can be employed to simulate blood flow through arteries and study the impact of arterial blockages, leading to better insights into cardiovascular diseases and treatment options.

4. Thermal Analysis of Electronics Cooling Systems

In the electronics industry, efficient cooling systems are vital to prevent device overheating. CFD simulations can help analyze the thermal behavior of electronic components and optimize cooling solutions, improving the reliability and performance of electronic devices.

5. Environmental Impact Assessment of Air Pollution

By employing CFD simulations, researchers can analyze the dispersion of pollutants in the atmosphere and assess their environmental impact. This can aid in formulating effective air quality management strategies and mitigating the adverse effects of pollution.

6. Study of Wave Hydrodynamics for Offshore Structures

CFD can be utilized to investigate wave hydrodynamics around offshore structures like oil rigs and wind turbines. Understanding wave interactions can lead to safer and more robust designs of these structures, particularly in harsh marine environments.

7. Aeroacoustic Analysis of Aircraft Noise

Aircraft noise is a significant concern for both passengers and the environment. CFD simulations can help analyze and minimize aerodynamic noise generated during flight, contributing to quieter and more comfortable air travel.

8. Optimization of Race Car Aerodynamics

In the automotive industry, optimizing aerodynamics is crucial for enhancing race car performance. CFD simulations enable engineers to refine car designs, reduce drag, and increase downforce, leading to improved lap times on the track.

9. Modeling Sediment Transport in Rivers

For environmental engineers, understanding sediment transport in rivers is essential for studying erosion and sedimentation processes. CFD can assist in predicting sediment movement and designing effective river management strategies.

10. Prediction of Indoor Air Quality in Buildings

With CFD simulations, architects and engineers can predict indoor air quality in buildings and optimize ventilation systems. This ensures healthier and more comfortable living and working environments for occupants.

11. Analysis of Flame Propagation in Combustion Chambers

In combustion engineering, CFD plays a vital role in studying flame propagation and optimizing combustion processes. This is crucial for enhancing the efficiency and reducing the emissions of combustion engines.

12. Simulation of Tsunami Wave Propagation

Studying tsunami wave propagation is essential for coastal areas prone to tsunamis. CFD simulations can aid in predicting the impact of tsunamis and devising early warning systems to minimize casualties and damage.

13. Optimization of Chemical Reactors

Chemical engineers can use CFD simulations to optimize the design and operation of chemical reactors. This enables the production of chemicals with increased efficiency and reduced environmental impact.

14. Predicting Weather Patterns and Storms

CFD techniques can complement traditional meteorological methods in predicting weather patterns and storm movements. Accurate weather forecasts are crucial for disaster preparedness and response.

15. Hydrodynamic Analysis of Submarines and Underwater Vehicles

For marine engineers, simulating the hydrodynamics of submarines and underwater vehicles is essential for their performance and maneuverability. CFD simulations help in designing submarines with improved stealth and agility.

16. Optimization of Cooling Systems in Data Centers

With the increasing demand for data storage and processing, efficient cooling systems are essential for data centers. CFD simulations can aid in optimizing airflow and cooling distribution, leading to energy savings and improved equipment performance.

17. Analysis of Blood Flow in Artificial Organs

For biomedical engineers, studying blood flow in artificial organs like heart pumps or dialysis machines is critical for device design and patient safety. CFD simulations can provide valuable insights into flow patterns and potential complications.

18. Evaluation of Hydroelectric Power Plant Efficiency

CFD can be utilized to analyze the efficiency of hydroelectric power plants by simulating water flow through turbines. Optimizing turbine designs can enhance power generation and reduce environmental impact.

19. Simulating Smoke Spread in Fire Safety Assessments

In fire safety engineering, understanding smoke spread in buildings is crucial for effective evacuation strategies. CFD simulations can aid in predicting smoke movement and identifying safe evacuation routes.

20. Design of Efficient HVAC Systems for Buildings

Heating, ventilation, and air conditioning (HVAC) systems play a crucial role in building comfort. CFD simulations can help in designing HVAC systems that maintain optimal indoor conditions while minimizing energy consumption.

21. Analysis of Blood Flow in Tumors for Cancer Research

Studying blood flow patterns in tumors is vital for cancer researchers. CFD simulations can assist in understanding tumor growth and designing targeted drug delivery strategies.

22. Simulation of Oil Spill Transport in Oceans

In the event of an oil spill, understanding the spread of oil in the ocean is crucial for mitigating environmental damage. CFD simulations can aid in predicting oil movement and devising effective cleanup strategies.

23. Aeroelastic Analysis of Aircraft Wings

Aeroelasticity refers to the interaction between aerodynamic forces and structural dynamics. CFD simulations can help analyze wing behavior under various flight conditions, ensuring safe and stable aircraft designs.

24. Study of Airflow in Indoor Sports Arenas

Creating comfortable airflow conditions in indoor sports arenas is essential for athletes and spectators. CFD simulations can optimize ventilation systems to maintain proper temperature and air quality.

25. Prediction of Ocean Currents and Marine Ecosystems

CFD simulations can be applied to study ocean currents and their impact on marine ecosystems. This aids in marine conservation and understanding climate change effects on marine life.

26. Analysis of Wind Effects on Tall Buildings

Tall buildings are susceptible to wind-induced vibrations. CFD simulations can evaluate the aerodynamic behavior of skyscrapers and optimize their designs for structural stability.

27. Simulation of Blood Flow in the Brain for Stroke Research

Understanding blood flow in the brain is crucial for stroke research. CFD simulations can provide insights into blood circulation and potential treatment options.

28. Design of Efficient Propulsion Systems for Ships

For naval architects, optimizing ship propulsion systems is essential for fuel efficiency and reduced emissions. CFD simulations can aid in designing efficient propulsion systems for various vessel types.

29. Analysis of Airflow in Agricultural Greenhouses

In agricultural settings, controlling airflow is vital for crop growth and pest management. CFD simulations can optimize greenhouse designs to create the ideal environment for plants.

30. Simulation of Smoke Extraction in Underground Tunnels

In the event of a fire in an underground tunnel, smoke extraction is critical for safe evacuation. CFD simulations can assist in designing effective smoke extraction systems for tunnel safety.

Computational Fluid Dynamics has revolutionized the way we approach complex fluid flow problems across diverse industries. The above CFD project ideas showcase the limitless possibilities and real-world applications of this field. As technology continues to advance, CFD simulations will play an increasingly integral role in shaping a more efficient, sustainable, and innovative future.

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The team at CFD Source offers consulting services and various CFD projects.

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Simulating the spread of the coronavirus when two people talk

CFD simulation of rocket engine using Fluent

CFD simulation of explosion and its impact on humans, Ansys Fluent training

Computational Fluid Dynamics

Why computational fluid dynamics.

Computational fluid dynamics (CFD) is the numerical study of steady and unsteady fluid motion.  The aerodynamic performance of flight vehicles is of critical concern to airframe manufacturers, just as is the propulsive performance of aircraft power plants, including those that are propeller-, gas turbine-, rocket, and electric driven.  CFD is used throughout the design process, from conceptual-to-detailed, to inform initial concepts and refine advanced concepts.  CFD is also used to lessen the amount of physical testing that must be done to validate a design and measure its performance.  CFD is used to predict the drag, lift, noise, structural and thermal loads, combustion., etc., performance in aircraft systems and subsystems.

CFD is also a means by which the fundamental mechanics of fluids can be studied.  By using massively parallel supercomputers, CFD is frequently used to study how fluids behave in complex scenarios, such a boundary layer transition, turbulence, and sound generation, with applications throughout and beyond aerospace engineering.

What is going on in computational fluid dynamics research at Illinois?

The University of Illinois has a strong and vibrant research community in CFD.  Active research areas include the prediction and control of boundary layer instability and transition on rigid and flexible surfaces, shock impingement on flexible surfaces, sound generation by turbulence, multiphase flows (esp. primary and secondary atomization), plasma-coupled combustion, biological flows and sound generation (esp. blood cells and the human voice), advanced CFD algorithms (esp. provably stable, high-order methods, and adjoint-informed optimization), and programming models and algorithm selection for performing CFD on future supercomputers. 

Who are the faculty members in the area?

Courses in this area.

• AE 410: Introduction to Computational Aerodynamics
• AE 412/ME 411: Viscous Flow and Heat Transfer
• AE 416: Applied Aerodynamics
• AE 433: Aerospace Propulsion
• AE 434: Rocket Propulsion
• AE 435: Electric Propulsion
• AE 451: Aeroelasticity
• AE 510/ME 510: Advanced Gas Dynamics
• AE 511: Transonic Aerodynamics
• AE 514: Boundary Layer Theory
• AE 515: Wing Theory
• AE 538: Combustion Fundamentals
• AE 598 CAA: Aeroacoustics
• AE 598 MCF: Multiphase CFD
• AE 598 UA: Unsteady Aerodynamics
• TAM 531: Inviscid Flow
• TAM 532: Viscous Flow
• TAM 536: Instability and Transition
• TAM 538: Turbulence

Get an advanced degree in aerospace engineering

The Department of Aerospace Engineering offers numerous options for advanced degrees,  including: 5-year Bachelor/Master of Science; Master of Science; Online Master of Science - Non-thesis; Master of Engineering in Aerospace Systems; Online MEng in Aerospace Systems; and Doctorate.

The deadline to apply for spring enrollment is December 1.

Start your application now

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Ozturk, Emre. "Cfd Analyses Of Heat Sinks For Cpu Cooling With Fluent." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605700/index.pdf.

Erlandsson, Johan, and Patrik Berg. "Analys av turbulensmodeller för CFD." Thesis, Uppsala universitet, Kärnfysik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-161110.

Drexler, Pavel. "CFD analýza proudění vzduchu pro různé typy průtokoměrů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220888.

Vytla, Veera Venkata Sunil Kumar. "CFD Modeling of Heat Recovery Steam Generator and its Components Using Fluent." UKnowledge, 2005. http://uknowledge.uky.edu/gradschool_theses/336.

Depman, Albert J. III. "Stoker boiler CFD modeling improvements through alternative heat exchanger modeling." Thesis, University of Iowa, 2014. https://ir.uiowa.edu/etd/4609.

Anderle, Milan. "Vývoj modelu kalcinace pro ANSYS Fluent." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-367526.

Vince, Tomáš. "CFD analýza tepelného zatížení trubkovnice." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443458.

Persson, Therese. "Analys av felkällor vid energisimuleringar : En jämförelse mellan IDA ICE och CFD." Thesis, KTH, Tillämpad termodynamik och kylteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-136561.

Brudieu, Marie-Anne V. "Blind benchmark predictions of the NACOK air ingress tests using the CFD code FLUENT." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/41310.

Jybrink, Anton. "Dynamic CFD Modelling of Deploying Fins During Transitional Ballistic." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-70758.

Altero, Henrique Rossi. "Representação da estrutura de escoamento bifásico água/ar em unidade de flotação com emprego de CFD." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/18/18138/tde-21032017-141341/.

Koren, Dejan. "Computational Fluid Dynamics Unstructured Mesh Optimization for the Siemens 4th Generation DLE Burner." Thesis, KTH, Mekanik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-178034.

FERRI, JUAN CARLOS, and SAMUEL MARIN. "CREATION OF A MODEL FOR THE STUDY OF THE VENTILATION AIR DIFFUSION OF THE FALUN HOSPITAL : a CFD Based Integrated Approach." Thesis, University of Gävle, Department of Technology and Built Environment, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-532.

The main aim of the project is the creation of a CFD model for a plant in the Falun Hospital in Sweden. CFD is a new area of engineering that appears because of the great improvement in the computers last years. Creating a CFD model is a difficult process but the model is capable to give a great amount of data and also the model allows predicting the results when parameters of the system are changed so the model lets to save money and time and becomes an interesting tool to choose the optimal solution for the system.

In this case the system studied is the air distributed by the ventilation system inside a plant of the Falun Hospital. The model have to predict the characteristics of the airflows inside the plant, how the air moves through the different areas of the plant and how these airflows affects in the distribution of temperature inside the plant.

Also the model has to become a use tool to analyze possible changes in the ventilation system to improve it. And a tool to get boundary conditions to study specific areas of this zone in future studies.

The project its part of a bigger project performed by the department of energy technology from Gävle university “Consequences in comfort and inside environment at energy optimization within the health care sector”. The project it is a study of the use of energy in health care buildings in Sweden after the analysis of the energy usage a study to optimize the use of the energy and how these changes affects the patient and workers climate comfort in these buildings.

The CFD model have to be a tool that helps in the study of the ventilation system and the relation with the comfort in the Falun Hospital and also a tool to choose an optimal solution for the ventilation system after changes to improve the energy usage in the building avoiding the use of experimental changes in the hospital.

LOPEZ, REBOLLAR BORIS MIGUEL 547458, and REBOLLAR BORIS MIGUEL LOPEZ. "Aplicación de cfd-ansys-fluent en el estudio hidrodinámico de tanques de recirculación empleados en acuacultura." Tesis de maestría, CENTRO INTERAMERICANO DE RECURSOS DEL AGUA - Universidad Autónoma del Estado de México, 2015. http://hdl.handle.net/20.500.11799/40428.

KOLAKOWSKI, MARCIN JANUSZ. "CFD simulation of fluid flow in milliliter vials used for crystal nucleation experiments." Thesis, KTH, Skolan för kemivetenskap (CHE), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-190849.

Ahmad, Yousef. "Oxidation of Graphite and Metallurgical Coke : A Numerical Study with an Experimental Approach." Thesis, KTH, Materialvetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-193604.

Rogers, Charles. "Computational Fluid Dynamics Analysis of an Ideal Anguilliform Swimming Motion." ScholarWorks@UNO, 2014. http://scholarworks.uno.edu/td/1940.

Vlachakis, Vasileios N. "Turbulent Characteristics in Stirring Vessels: A Numerical Investigation." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/34599.

Stenger, Douglas. "Three-Dimensional Numerical Simulation of Film Cooling on a Turbine Blade Leading-Edge Model." University of Cincinnati / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1236053109.

Zhai, Qiang. "A NUMERICAL STUDY OF A HEAT EXCHANGER SYSTEM WITH A BYPASS VALVE." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1461252171.

Bergmann, Cale. "Comparison of turbulence model predictions in rod bundles with supercritical up-flow." VTT Technical Research Centre of Finland Ltd, 2015. http://hdl.handle.net/1993/31016.

Törnblom, Nicklas. "Uppskattning av Ytkurvatur och CFD-simuleringar i Mänskliga Bukaortor." Thesis, Linköping University, Department of Mechanical Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2906.

By applying a segmentation procedure to two different sets of computed tomography scans, two geometrical models of the abdominal aorta, containing one inlet and two outlets have been constructed. One of these depicts a healthy blood vessel while the other displays one afflicted with a Abdominal Aortic Aneurysm.

After inputting these geometries into the computational dynamics software FLUENT, six simulations of laminar, stationary flow of a fluid that was assumed to be Newtonian were performed. The mass flow rate across the model outlet boundaries was varied for the different simulations to produce a basis for a parameter analysis study.

The segmentation data was also used as input data to a surface description procedure which produced not only the surface itself, but also the first and second directional derivatives in every one of its defining spatial data points. These sets of derivatives were followingly applied in an additional procedure that calculated values of Gaussian curvature.

A parameter variance analysis was carried out to evaluate the performance of the surface generation procedure. An array of resultant surfaces and surface directional derivatives were obtained. Values of Gaussian curvature were calculated in the defining spatial data points of a few selected surfaces.

The curvature values of a selected data set were visualized through a contour plot as well as through a surface map. Comparisons between the curvature surface map and one wall shear stress surface map were made.

Wittes, Thobeka. "Determination of the gas-flow patterns inside the hot-wire chemical vapor deposition system, using computational fluids dynamics software (fluent)." Thesis, University of the Western Cape, 2009. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_7638_1310988940.

Computational Fluid Dynamics is the analysis of a system involving fluid flow, heat transfer and associated phenomena such as chemical reactions by means of a computer-based simulation. The simulations in this study are performed using (CFD) software package FLUENT. The mixture of two gases (Silane gas (SiH4) and Hydrogen gas (H2)) are delivered into the hot-wire chemical vapor deposition system (HWCVD) with the two deposited substrates (glass and Silicon). This process is performed by the solar cells group of the Physics department at the University of the Western Cape. In this thesis, the simulation is done using a CFD software package FLUENT, to model the gas-flow patterns inside the HWCVD system. This will show how the gas-flow patterns are affected by the varying temperature of the heater in each simulation performed in this study under a constant pressure of 60&mu Bar of the system.

Viguer, Torres Luis, and Perez Borja Fatas. "Computer simulations of temperature and flow field in industrial spaces using confluent jets air supply method." Thesis, Högskolan i Gävle, Avdelningen för bygg- energi- och miljöteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-12409.

Gerdin, Lisa, and Keijser Mira Rosengren. "Numerical study on jet flow characteristics of high head and large discharge spillways." Thesis, Uppsala universitet, Elektricitetslära, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-223777.

Shuster, James Louis. "Numerically Modeling the Flow and Friction Within a Helically-Finned Tube." Youngstown State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1274311619.

Hernández, Vásquez Fernando Germán. "Comparación de Resultados de Software CFD (Adina y Fluent) Frente a Soluciones Existentes para el Flujo en un Canal con Dos Obstáculos." Tesis, Universidad de Chile, 2008. http://repositorio.uchile.cl/handle/2250/103312.

Karimpourian, Bijan. "cfd modelling and experimental study on the fluid flow and heat transfer in copper heat sink design." Licentiate thesis, Mälardalen University, Department of Public Technology, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-517.

This thesis is studying the heatsinks new designs for copper heatsinks which utilizes modelling and simulation by CFD, construction of prototypes and experimental works. Challenges and complications in manufacturing of copper heatsinks are expressed and finding the solutions to these hindrances involve in this work. Numerical efforts supported by fluent are made to promote investigation and approaching the goal in which serves the new opportunities for wider application of copper material in heat sinks.

However the thermal conductivity of copper is about double as aluminium but still aluminium heatsinks are commonly used for heat dissipation in computers.

Comparing of heat performance of two analogous heatsink of different materials, aluminium and copper, is conducted by numerical analysis in the CFD environment.

In addition to larger surface area and airflow velocity another solution for enhancement of heat dissipation is suggested.

Manufacturing solutions of copper heatsinks are proposed which will facilitate fabrication of more high performance copper heatsinks than the current heavy and expensive models.

Our first copper heat sink model is designed exclusively based on the technical observations and analyses of numerical simulation of two identical copper and aluminium heatsinks by CFD and as well as manufacturability concerns.

This heat sink is fabricated mechanically and is tested by a number of heat sources and high sensitive devices such as adhesive K type thermocouple, data acquisition 34970A in associated with HP Bench Link program.

An extent experimental work on aluminium heatsinks, integrated with forced convection, is performed in order to measure their thermal capacities.

Comparison of the heat performance of a typical aluminium heatsink, which was the best among the all aluminium heat sinks and proposed copper heatsink under identical experimental conditions, is performed.

Also in some numerical efforts, optimizing and predicting of the thermal characterization of the proposed heatsink with inclined free fins is developed. The model is scaled up in the fluent environment to predict its application in the cooling of larger heat generated electronic devices.

Impingement air-cooling mode of force-convection is adopted for heat dissipation from high power electronic devices in associated with the proposed inclined fin model.

Components of airflow velocity in the hollow spaces of the heatsink are discussed. Pressure drop and other thermal variables are analyzed analytical and by CFD code.

Another mechanical manufactured copper heat sink is investigated. A new design of the base and fins is optimized.

A three-dimensional finite volume method is developed to determine the performance of the proposed heatsink.

Thermal and hydraulic characterization of the heat sink under air-forced convection cooling condition is studied. The flow behavior around the fins and some other parts of the heat sink is analyzed by utilizing CFD code.

The hydraulic parameters including velocity profiles, distribution of static pressure, dynamic pressure, boundary layer and fluid temperature between the fins and in the passageway at the middle of the heat sink are analyzed and presented schematically.

Furthermore the thermal characteristic of the proposed heatsink is studied by contouring the three dimensional temperature distributions through the fins and temperature of the heat source by CFD code.

Maluta, Francesco. "Studio della fluidodinamica e della reazione chimica in un reattore agitato tramite modellazione cfd." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/7305/.

Kapell, Jennie. "Analysis of the Inner Flow in the Wave Energy Converter WaveTube." Thesis, KTH, Tillämpad termodynamik och kylteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-102293.

Saripalli, Raja. "Simulation of combustion and thermal-flow inside an industrial boiler." ScholarWorks@UNO, 2004. http://louisdl.louislibraries.org/u?/NOD,144.

Bromley, II Michael William. "Pneumatic Particulate Collection System Analysis and Design." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/33562.

Friedrich, Jens. "Untersuchungen zur Aufbereitung von Rohbraunkohle mit Schlagradmühlen für die Direktfeuerung in Kraftwerken." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2014. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-133458.

Vobejda, Radek. "Výpočtové modelování aerodynamického hluku způsobeného bočním zrcátkem automobilu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401556.

Ekman, Petter. "A Sensitivity Study of Some Numerical and Geometrical Parameters Affecting Lift." Thesis, Linköpings universitet, Mekanisk värmeteori och strömningslära, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-124197.

Mačák, Martin. "Modelování magnetohydrodynamických jevů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377336.

Moghimi, Ardekani Mohammad. "Optical thermal and economic optimisation of a linear Fresnel collector." Thesis, University of Pretoria, 2017. http://hdl.handle.net/2263/61313.

Perez, Sancha David. "CFD analysis of a glider aircraft : Using different RANS solvers and introducing improvements in the design." Thesis, Linköpings universitet, Mekanisk värmeteori och strömningslära, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-159995.

Wallin, Adéle. "Structural intrusion, flow disturbance and spillway capacity : CFD modeling of the Torpshammar dam." Thesis, Uppsala universitet, Elektricitetslära, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-369319.

Sjösten, William, and Victor Vadling. "CFD Simulations of Flow Characteristics of a Piano Key Weir Spillway." Thesis, Uppsala universitet, Elektricitetslära, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-414861.

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