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Magneto August 8, 2012 15:21
Anisotropic Diffusivity
 
Hi Everyone,

Does anyone know how to specify an anisotropic diffusivity tensor for the fluid (not a user-defined scalar)? All I can find is the DEFINE_DIFFUSIVITY macro and since it only returns one real, I'm not sure what to do.

Thanks a lot!

ziglat2004 August 9, 2012 12:26
I have the same problem, what I can think of is to solve the species balance equation as an UDS and then define directional diffusivity (anisotropic) using DEFINE_DIFFUSIVITY.

please let me know if you find any way.

A CFD free user March 29, 2013 07:01
Quote:
Originally Posted by ziglat2004 (Post 376294)
I have the same problem, what I can think of is to solve the species balance equation as an UDS and then define directional diffusivity (anisotropic) using DEFINE_DIFFUSIVITY.

please let me know if you find any way.
That's what I'm trying to do and I hope it works.


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