[Zee]

Hi Everyone,

I am modeling the moisture transfer through the membrane in ANSYS Fluent. I am using Species Transport Model for this and writing the UDF to define the mass fractions at the surface of the membrane. After defining the mass fractions, I need to calculate the mass flux through the membrane. This mass flux is dependent on membrane properties and I have the relationship for the calculation of mass flux.

But I am confused about the selection of Define_macro to be used for mass flux in UDF.

I request the seniors to please guide me in this problem or recommend relevant reading materials. Thank You.
Best Regards