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COMSOL can't model hypersonic flow (M>4)?
Posted 2020年5月28日 GMT-4 22:09 Computational Fluid Dynamics (CFD) 1 Reply
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I tried to model a hypersonic (M=8) problem in COMSOL - a blunted wedge. I started to get probelms with a low stagnation velocity and results that strongly disagreed with other CFD codes. I was ultimately told by COMSOL tech support that the code can't do hypersonic flow - the available turbelence models cannot handly that regime:
"the available turbulence models in COMSOL in "hmnf" interface would not lead to accurate resolution of phenomenon occuring near wall in hypersonic regime, specifically shock-boundary layer interaction."
Has anyone had any success in the hypersonic regime with COMSOL? I think it's unfortunate it can't do these problems.
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Correction to my previous post. I meant "low stagnation temperature". Meaning, lower than the theoretical value computed with the mach number.