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Differences in porous media flows coupled with Navier Stokes
Posted Mar 29, 2018, 10:29 p.m. EDT Fluid & Heat, Computational Fluid Dynamics (CFD), Porous Media Flow Version 5.3a 0 Replies
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Hi, I am using Comsol 5.3a to solve a coupled free and porous media flow. I see in the documentation that .fp (free and porous media flow) module keeps the velocity and pressure continuous accross the interface but not the stress. Also .br (Brinkman) module seems to do the same. I want to know the difference, and how this is implemented. Do they use a stress jump coupling condition (Like in Ochoa Tapia Whitaker) between NS and Brinkman or a unified one domain approach like a Penalization method with characteristic functions for each domain. and if so, what is the difference between .fp and .br? I see the same equations...
Thanks to anyone who takes the time to read and reply to my question.
Regards,
Hello Antonios Parasyris
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