Volume-averaged conservation equation

sarrazs · December 20, 2017, 10:41

Hi

I want to know how cfx define the eulerian control volume for averaging the Navier-Stokes equations for Euler-Euler Model.
I saw the explanation for the numerical control volume but I'm looking for the control volume for the Volume-averaged conservation equation wish must be independent of the mesh size.

ghorrocks · December 20, 2017, 16:29

I do not understand what you are saying. The control volume for the Eularian multiphase model is the same control volume for all other equations, that is the control volume. To get it independant of mesh size you perform a mesh sensitivity study and refine it until it is independant of mesh size, same as you do for all the other equations.

December 20, 2017, 10:41	Volume-averaged conservation equation	#1
sarrazs Member cfxtwophaseflow Join Date: Aug 2017 Posts: 46 Rep Power: 8	Hi I want to know how cfx define the eulerian control volume for averaging the Navier-Stokes equations for Euler-Euler Model. I saw the explanation for the numerical control volume but I'm looking for the control volume for the Volume-averaged conservation equation wish must be independent of the mesh size.

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December 20, 2017, 16:29		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,705 Rep Power: 143	I do not understand what you are saying. The control volume for the Eularian multiphase model is the same control volume for all other equations, that is the control volume. To get it independant of mesh size you perform a mesh sensitivity study and refine it until it is independant of mesh size, same as you do for all the other equations.