URANS vs LES for Acoustic Simulations -- CFD Online Discussion Forums

August 19, 2021, 07:27	URANS vs LES for Acoustic Simulations	#1
TurBoris Member Bora Join Date: Nov 2016 Posts: 33 Rep Power: 9	Hi Everyone, In a case where pressure waves do not propogate from a turbulence source (no quadrupole), the only way is to reflect from solids. Thus, no need to solve turbulence as LES does. In this case, is URANS solver able to capture the pressure waves at desired frequencies with a fine mesh (e.g. 20 elements per wavelength) and time step size (sufficient for the frequencies). Is there any drawback using URANS for acoustic simulation cases like this ? Looking forward your comments. Thank you.

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