[OleksiiGenesis]

I am aerospace student, and I going to spend some time to learn CFD and want to know good way to do this.

I have some backgrong in gasodynamic and numerical techniques, but have never used any CFD, this year we started to learn Ansys Fluent in university so at some point I will learn it any way. but I want to know about other options: Is ansys good choice to go? Autosedk CFD? I saw some comments where people advice to start with OpenFOAM, what pros and cons compare to ansys? What CFD is usually used in real life?

What resourses or courses I could use to learn particular CFD?

As an additional question, what kind of CFD software is commonly used to model flow in rocket or gas turbine engines? I recently came across ConvergeCFD, which is designed for such cases; does anyone have experience with it?

[LuckyTran]

tl;dr Fluent is a great software

Ansys Fluent and Siemens Star-CCM+ are the two most popular CFD software used in industrial aero application in large companies. OpenFOAM is similar in capability to Fluent and Star-CCM+ and is open source so it is very accessible. Biggest issue with OpenFOAM is there is no GUI and it is extremely user hostile to new users. You can find tons of examples of posts in this forum of people trying to figure out how to launch a case in OpenFOAM and failing because they don't know how to setup one of the input files needed for an OpenFOAM case.

There are many many many companies offering less comprehensive tools competing for a small piece of that big pie. Many software like Converge only do LES, only have a trimmed cell mesher, and thus have only been used in extremely niche cases. Other software like Comsol or Solidworks have some turbulence motions but not to the scope of coverage provided by Fluent or Star-CCM.

The best resource you can use to learn CFD is to find a mentor, find a physical human being that has done CFD. Don't try to learn CFD on your own, there are tons of pitfalls and you might easily end up saying one day that the pressure based solver can't be used for compressible flows. Or worse, you might think that incompressible flows are constant density flows.

From a theoretical point of view, generally all CFD codes nowadays have a similar foundation and the skills you have in one software are translatable to other codes and it should not be an issue which particular code you learn for your first CFD. You will one day work for a company that will use an entirely different tool.

[CFDfan]

For new users I'd recommend Cradle CFD. It is very similar, in terms of capabilities, to Fluent and StarCCM, but has much friendlier and intuitive GUI.

[FMDenaro]

Just to be clear, learning CFD is different from learning some user guide or tutorial of some software.
Open any CFD textbook and see the topics.

[JBeilke]

"The Perić Lectures on CFD " by Milovan Perić


https://community.sw.siemens.com/s/q...van-peri%C4%87