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Old   December 6, 2006, 11:36
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Hi, When using the mixture model, I am little bite confused about the used of DEFINE_SOURCE ; Do the species source term is defined as = density*area *velocity*species-mass-fraction/volume (unit: kg/m3-s)(?).

-But in case of 3D Simulation what is the definition of the area ? (specially when there are unstructured grid ?). -in 2D how to defined the area ?

Thank you for your help.
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