Hello,
I’m Tunahan and I’m studying Aerospace Engineering. I want to do cfd analysis of a rocket has speed of mach 0.8 which is in transonic region. But I have no idea about boundary values or solution methods to give in a cfd analysis.
I need help about the analysis process. If anybody can help me I 'll appreciate that
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Hello Tunahan,
welcome to SimScale, i think for this purpose you need the compressible fluid flow, this is the documentation. There will you find a lot of information about cfd
Best regards
Kai
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Are you interested in modeling the shock waves? Ordinary steady state compressible simulations don’t have equations to model shock waves. The only way currently is to go for a transient compressible simulation and toggle on “Transonic” in the numerics tab.
In any case, simulations like this demand a lot of computational effort and are pretty tough to converge. [This][Deleted]project might be of interest.
I’ll tag @Get_Barried here in case he has some comments
/Ric
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Hi All,
Apologies for the delayed reply.
Transonic simulations are quite difficult due to the nature of that flow. Steady-state simulations are not possible as far as I know for transonic simulations here which means you need to use transient simulations straight away.
I suggest starting on 2D before moving on to 3D, as Ric mentioned, computational resources required for these kind of runs are immense so gotta start somewhere feasible.
Cheers.
Regards,
Barry
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Hey thanks for the super helpful reply. I’m not sure how I missed that thread. I haven’t quite mastered the search function on here. I think I’ll pass with him this time around. If i want any further guideline we will contact you here https://www.simscale.com/forum/t/rocket-compressible-cfd-analysis/87313/