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interface boundary condition
Posted Jun 17, 2014, 2:09 p.m. EDT 0 Replies
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I am using PDE solver of Comsol (Coefficient Form). I have faced two problems. I would appreciate if you guide me how to overcome.
1- I am solveing a 2D model for two geometries with an interfacial boundary condition. I have a problem with setting up the interface boundary conditions.
I have two geometries with the same lenght. At interface, the vertical velocity of both geometries should be equal. Two different variable (u1 and u2) are solving separately in geometries. I do not know how to specify the interactive boundary condition? at each time step, this interactive boundary condition should be applied to connect 2 geometries. I have tried to use boundary similarity, pair, ... without success. (the lenght of common boundary is the same).
2- in the attached model, I have specified two governing equations for two geometries. my question is that have I specified the coefficent ''Gamma'' in lower layer according to PDF file? how I should specify Uxxt and Uyyt?
Regards
Ali
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Hello Ali Abdolali
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