a problem about user define scalars(uds)
Hi, all. Recently I want to use Fluent's user define scalars(uds) in a multiphase problem . I find that the uds in multiphase has the following formulation
http://hpce.iitm.ac.in/website/Manua...ug/img2694.gif So I have a problem about the diffusion term. When I input the value "uds diffsivity" In "Create /Edit Material " should I multiply by the density and the voidage myself ? Or Fluent will auto multiply the voidage of the phase? Can anybody help me? thanks. |
As you can see in the uds equation, diffusivity should be given to Fluent in the form -- same units as dynamic viscosity (Pa.s).
Fluent takes care of multiplying by voidage itself. Quote:
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Hi, So you mean that I should give the value "density multiply the diffusivity coefficention" and ignore the voidage thing, Did I get it? thanks.
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