Greetings! I am working on the interdigitated flow channel, where mating surfaces (internal) are supposed to diffuse the liquids from one side to the other. I experimented with different boundary conditions: internal as internal, which led to merging the surfaces and making a single entity. Additionally, I made internal as wall, which prevented the liquids to cross and do diffusion is observed . I am intended to observe diffusion at mating surfaces. Could you please suggest a suitable boundary condition?
Well, After consulting the experts , I have been suggested to write UDFs with species mass flow through the porous wall.Can any one suggest on how to proceed with writing UDFs?
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