What is CFD where can i get it how can i learn it

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Discussion Overview

The discussion revolves around Computational Fluid Dynamics (CFD), particularly in the context of simulating dimpled airfoils. Participants explore the complexity of CFD, seek resources for learning and software options, and share experiences related to CFD applications.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested, Homework-related

Main Points Raised

  • One participant expresses a need for CFD to simulate dimpled airfoils and seeks guidance on learning it, emphasizing their programming background.
  • Another participant defines CFD as numerical fluid dynamics and notes the complexity involved, highlighting the necessity of understanding mathematical techniques such as partial differential equations (PDEs).
  • Several participants suggest searching for CFD software online, with one specifically mentioning Comsol and Ansys as commercial options.
  • A participant mentions the potential difficulty of finding free CFD software, suggesting that many available tools may be designed for Linux/UNIX systems.
  • One participant shares a specific CFD tool they use, providing a link for others to explore.
  • A later reply offers a brief workflow for using Ansys for CFD simulations, indicating a practical approach to the topic.

Areas of Agreement / Disagreement

Participants generally agree on the complexity of CFD and the need for a solid mathematical foundation. However, there is no consensus on the availability of free software or the specific tools best suited for the participant's needs.

Contextual Notes

Participants express uncertainty regarding the availability of free CFD tools and the computational requirements for simulating dimpled airfoils, suggesting that it may involve complex 3D modeling.

Who May Find This Useful

Individuals interested in learning about CFD, particularly in relation to fluid dynamics and airfoil simulations, as well as those seeking software resources for computational modeling.

sam.fallahi
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i have got a project about dimpled airfoils and i need a good computer simulation and my professor told me that cfd is very more complicated than i can handle so i can't do anything but i need to do something and i am ready to learn cfd(i'm a great c,c++ programmer) what do you think i should do and please explain about cfd. thank you for your attention.
 
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cfd=Computational Fluid Dynamics.
it is not a "thing"; it is just what you call fluid dynamics (which includes the physics of airfoils) when the calculations are done on a computer.

And yes it is very complicated; you need to have a good grasp of various mathematical techniques (PDEs etc) before you can even begin to understand it.
 
my biggest problem is to find a place i can download it from i can even download it from! please if anybody has a link please reply!
 
Again; CFD is not a "thing". or a specific piece of software. It is just numerical fluid dynamics.
Now, there are lots of software packages that can do CFD simulations. Comsol and Ansys would be two examples of commercial (=not free) "generic" math packages that can also solve CFD problems.
There are a number of free CFD tools around; just search for "CFD software" in Google (although I suspect many of them will be made for Linux/UNIX, as is often the case for this type of software), if you are lu7cky you might be able to find a free tool that can do what you wan (although dimpled airfoils sounds seriously difficult, I suspect it would be a full 3D problem meaning you might even need a supercomputer to perform realistic simulations)
 
You're unlikely to find a free one, but here's one I use a lot. Does it look like it meets your needs?

http://inres.com/products/tileflow/overview.html
 
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thank you it really helped me a lot!
 
import your geometry to ansys benchwork then make cfd mesh then import file to cfd(ccl)
 

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