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Shear Periodic or Lees-Edwards Boundary Conditions

Posted Feb 7, 2014, 8:40 a.m. EST Modeling Tools & Definitions, Parameters, Variables, & Functions Version 4.2 0 Replies

Jane Hung
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I'm wondering if and how I could implement the following boundary conditions in COMSOL:
at point (x,y), f(x,y) = f(x+Nx*L+Ny*gamma*L, y+Ny*L),
where Nx, Ny are arbitrary integers, and gamma and L are constants.

This is a modified form of a periodic boundary condition for a system with shear, but I don't know if you can modify the COMSOL built in periodic boundary condition. This should only affect the boundaries parallel to the flow direction. (Also, this is done using the Coefficient Form PDE.)

Thanks
0 Replies Last Post Feb 7, 2014, 8:40 a.m. EST
COMSOL Moderator

Hello Jane Hung

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