define mass diffusivity for each zone
I am modelling mass transfer in two zones.
One zone is a normal duct and another zone is a porous media.
I want to use kinetic theory for mass diffusivity in the duct.
For the porous media, as I know, I must write DEFINE_DIFFUSIVITY.
But, if I define DEFINE_DIFFUSIVITY in the materials panel, I can not use kinetic theory, can I?
What can I do for this case?
Thank you in advance
I have a similar problem, did you find any answer? it would help me a lot. I want to use the kinetic option theory for both and then use C_DIFF_L macro to manipulate the diffusivity. What do you suggest? I had a problem with my UDF.h code it is online now.
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