What is Cfd: Definition and 132 Discussions

Computational fluid dynamics (CFD) are used to understand complex thermal flow regimes in power plants. The thermal power plant may be divided into different subsectors and the CFD analysis applied to critical equipment/components - mainly different types of heat exchangers - which are of crucial significance for efficient and trouble free long-term operation of the plant.

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  1. H

    CFD in Astrophysics: Exploring Interdisciplinary Boundaries

    Hi all, I have a B.Sc. in Mechanical engineering, a M.Eng in aeronautical engineering and I am currently looking for a topic for my Ph.D. I've been working in "conventional" CFD (Computational Fluid Dynamics) for almost 4 years now and I really think it's time to move on beyond the...
  2. C

    Having trouble deciding between CFD and physics

    i may apply to grad schools this fall or wait until next fall to apply. I've been looking into condensed matter because i heard it uses stat mech alot, which is my favorite area of physics as i didnt enjoy E&M or quantum as much. i don't know too much about it as i haven't taken any electives...
  3. N

    Which CFD software is best for a final year project on Heat Exchangers?

    Hi... I m currently in my final year Mech engg. My final year project is on a "Heat Exchanger"... So I need to learn a CFD software... I have two choices - "Fluent-Gambit" Or "Star CD-CCM+" Plz tell the minimum hardware configiguration required for each of the above softwares... Plz...
  4. J

    Require help about CFD analysis of turbomachines

    hi, I want to learn turbo machines analysis in GAMBIT and Fluent... Anyone who have experience of CFD please help me... please give me if u have any tutorials (apart from given within softwares)... I am working for my masters thesis on effect of stagger angle on turbine blade cascade. Thank...
  5. M

    Aerofoil analysis, CFD and Experimental comparison

    Homework Statement Computational Fluid Dynamics anyone? :D I know someone out there is a genius? I'm trying to understand some of the differences between Experimental results and a Fluent (CFD) analysis of a NACA 0012 aerofoil. There are 3 Cp/x graphs of my results (plotted with negative down...
  6. M

    What are some useful CFD theory notes for beginners?

    Here are some notes that I've finally compiled. They are taken over the course of the last two years of study and I've neatly coded them into a pdf by way of LaTeX for your enjoyment. I haven't gotten most of the figures in yet, but all of the equations are there, and most of the text/comments...
  7. G

    Choosing the Right CFD Textbook for Working with Fluent

    hello i am an undergraduate student and i have to do my project with "Fluent". but i have not worked with Fluent before and i am told that before working with fluent i should read some cfd texts. so i was wondering if anybody could help me to choose the right cfd textbook for working with...
  8. P

    CFD: First Steps for Newbies - Pooven

    Hi there, I'm fairly new to Computation Fluid Dynamics and the engineering concepts as a whole. I believe CFD is generally a Chemical and Mechanical Engineering interest but I thought I'd post in this sub forum. I'd like to share what little I know and learn from others. I understand that the...
  9. M

    CFD Result Files - Convert plot3d(fast) > cgns

    Hello. I have a small problem. I have a CFD run going on our universities cluster. For those runs, I use a fully structured code that uses plot3d formatted files. Rather than have to go in there and look at them, I would like to look at them here at work, where we use CFX. In short, is there...
  10. E

    Is a CFD Model Accurate in Predicting Temperature of a Computer Chip in a Duct?

    I am running a CFD model with a computer chip measuring .06 x .05 x .005 m immersed in a rectangular duct measuring .3 x .1 x .02 m. The flow has velocity of about 2.5 m/s. The maximum temp. for the laminar case is about 440 K, while the max temp. for the turbulent case is 395 K. Does this...
  11. M

    Cfd & fluent (k-e turb.model and mesh)

    Hi. I want to make a mesh for a airfoil for i solute it with FLUENT. I must use the k-e turbulent model but i do not know how i make the mesh near the wall of airfoil. I have read that the Y plus of first cell must be within 30-300 for standard wall function. However, How can i compute the...
  12. R

    Does anyone use EFD or other CAD based CFD software?

    Hi, I just wanted to know if anyone uses EFD for doing thermo and/or fluid dynamic simulations. In particular, as an addon to Pro Engineer. My company is looking at getting some CFD type software and seeing that we already use ProE for drawing, I though this might be a good option, but I'm...
  13. S

    Which Software is Best for CFD: Fortran vs C

    Can someone pls advise me as to which would be the better software to learn which would help in CFD - Fortran or C or something else? Thanks!
  14. M

    Multiphase CFD in Enclosed Space (no inlets/outlets)

    Hi guys, I have a co-worker here who is stuck on a problem, and I cannot give him much help either. He is trying to model a multiphase flow with no inlets or outlets. The problem is essentially a rotating cylinder inside of a pipe that is sealed on both sides. Assume that the pipe is half filled...
  15. M

    One dimentional problems(flow) in CFD

    Hi everyone My question is What is the meaning of one dimensional problem(flow)? Can one dimensional problem(flow) solve in CFD? If the answer is yes then How?
  16. M

    Why is hex meshing preferred over tet meshing in CFD?

    Hi everyone! Can you explain me Why always hex mesh is preffered instead of tet mesh if hex mesh is possible in perticular geometry? give brief explanation as flux point of view.
  17. M

    Use CFD in Air Compressor | Benefits & Applications

    Where can i use CFD in Air comressor?
  18. C

    Exploring Partial Multigrid Solutions for Efficient CFD Simulations

    Hey everyone, When solving Navier Stokes equations for simulation, one usually has to make the velocity field divergence free and solve a sparse linear system of equations. The Poisson equation that results is usually solved using either a Pre conditioned CG method or a Multigrid method...
  19. A

    CFD Gambit Meshing: Solving Problem in Blood Flow Analysis

    Hi everybody, I am Physics graduate now starting a PhD in Bioengineering, and I have been thrown in the deep end to learn Gambit / Fluent for the purposes of blood flow. In my undergrad we focused mainly on MathCad and I have no experience of CFD. So I'm really struggling with creating a...
  20. A

    Top CFD Software for Aerospace Applications and Integration with CAD Programs

    Hi- I was wondering if anyone could talk a little bit about the top Computational Fluid Dynamics software out there today- specifically in the aerospace industry/for applications in aerodynamics. Do they work in conjunction with CAD programs? If so, which are the leading programs (CATIA...
  21. D

    3D CFD Tutorials & CATIA V5 to CFD File Imports

    hi. I need some 3D CFD tutorial. Can anyone introduce some links to me besides cfd-online? And may I know how to import file from CATIA V5 into cfd? where can I find that information? Thanks.
  22. O

    Finding CFD Software for Research Project

    For a research project, I am in need of CFD software. Does anybody know any relatively inexpensive, or free, software I may purchase that will help me? Thanks
  23. Astronuc

    CFD - Computational Fluid Dynamics

    There are a few threads in this forum about CFD, but I thought I'd establish one for a general discussion of CFD methods and applications and tie it in with others as appropriate. In the December '07 issue of Aerospace America in the Aerospace Sciences section is a short article on the recent...
  24. Astronuc

    CFD General Notation System (CGNS)

    CGNS has developed into a popular standard for the storage and exchange of CFD data in the aerospace community and is now an AIAA Recommended Practice. The use of this standard allows a compatible application or user to communicate CFD setup and information to or from other third-party CFD tools...
  25. Q

    How Can I Accurately Model Turbine Blades in CFD Using COMSOL/FEMLAB?

    Hi, I’m pretty new to the CFD game, but have been trying to model, very approximately, fluid flow through a field of undersea turbine generators. The issue I’m having is how to actually approximate the restriction which corresponds to the turbine blades. I’m using COMSOL/FEMLAB. As far as...
  26. D

    Fake CFD: Simple Tool for Simulating Flow and Energy Processes

    Simple CFD tool. "Fake CFD" Hello, I need to simulate a flowing of substance, but I needn't(and can't) do it in right (completely physical-proved) way. My system will being used as education system, so I can do some fakes in simulation process. Examples of flowing of substance\energy...
  27. T

    CPU differences: quad core, dual core, etc. for CFD

    Hello all, I was wondering if anyone could help me figure out some differences between all the different types of processors out there for computers. I am a graduate student learning about CFD, and my advisor wanted me to check out some different processors because we would like to get new...
  28. A

    What Resources Help Beginners Learn Gambit/Fluent CFD Software?

    Hi, can anyone recommend me any site/books that could help me to learn the Gambit/Fluent software. Btw, what is the difference between these 2 softwares?? I am a beginner, totally alien to these softwares and I have about a month to learn it. Thanks alot.
  29. Z

    Efficient Moving Mesh CFD Solutions | Expert Recommendations for OpenFOAM

    Are there any practitioners here who could recommend something along the lines of openfoam for doing moving mesh? I've had no joy in using it but then this probably serves to illustrate my limitations more than anything
  30. C

    Modeling Filters in Airflow CFD: How to Simplify and Analyze

    If you wanted to model a filter in an airflow using CFD, how would you go about it? I imagine that an exact model of a filter would be way too complex to model and take vast amounts of time to solve, so there must be some kind of simplification? I was thinking that maybe some known properties of...
  31. himanshu121

    Troubleshooting Mesh Issues in Gambit and Fluent CFD Tutorials

    Hi i want to know the difference b/w a good mesh and a bad mesh in gambit, pls give me suggestions and if possible a good link which gives a lot of tutorial on gambit and fluent, I am attaching a msh file which i created using gambit can anyone pls suggest what is wrong with the above mesh...
  32. S

    How to Model High Viscosity Layered Waste Pumping in CFD?

    Please, can somebody help in a problem related to FD and outlined below. I need to formulate a problem for the following question: modeling of liquid flows during a process of pumping from open storages. A liquid is high viscous waste similar to highly viscous oils. It is layered waste...
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