Viscosity models in compressibleInterFoam

tRock · March 30, 2022, 14:14

Hello to all,

I am new to OpenFOAM and I have been doing some tutorials with interFoam and compressibleInterFoam.

Why are the viscosity models in the incompressible solver [interFoam] not available in the compressible solver [compressibleInterFOam]? It doesn't make sense to have a viscosity model have a dependency on the shear-rate if the formulation is compressible?

tRock · April 5, 2022, 04:53

Hi,

Sorry if this is too basic, but I would like to understand. Is there a reason for this? I have seen in the source code, and the transport models only depend on pressure and temperature. Why was the shear-rate left out?

March 30, 2022, 14:14	Viscosity models in compressibleInterFoam	#1
tRock New Member Join Date: Mar 2022 Posts: 24 Rep Power: 4	Hello to all, I am new to OpenFOAM and I have been doing some tutorials with interFoam and compressibleInterFoam. Why are the viscosity models in the incompressible solver [interFoam] not available in the compressible solver [compressibleInterFOam]? It doesn't make sense to have a viscosity model have a dependency on the shear-rate if the formulation is compressible?

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April 5, 2022, 04:53		#2
tRock New Member Join Date: Mar 2022 Posts: 24 Rep Power: 4	Hi, Sorry if this is too basic, but I would like to understand. Is there a reason for this? I have seen in the source code, and the transport models only depend on pressure and temperature. Why was the shear-rate left out?