how to define F=R1*vis*Laplace(vel) as source term -- CFD Online Discussion Forums

April 24, 2010, 11:26	*how to define F=R1visLaplace(vel) as source term*	#1
safavinick_reza New Member Reza Join Date: Apr 2010 Posts: 3 Rep Power: 16	hi everyone I am modeling the 3D two phase flow of Solid-Gas and I want to define the following formulation for internal-force between solid particles: F = VolumeFraction * Viscosity * Laplace(Vel) I defined the solid phase as 1st phase in the model and I am thinking of using FNDSDX function with DUDX for calculation of Laplace(vel). I am wondering how to do it? I could not figure out from POLIS so I am posting this in here if anyone can help me with this. Tanx /Reza

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