Mods: I wasn't sure if I should put this here or in DE's, if you think it would be better there, feel free to move it.(adsbygoogle = window.adsbygoogle || []).push({});

Everyone:

If I have a bunch of particles, which I'm modelling as a continuum, and I want to put periodic boundary conditions which reflect (completely specular reflection) some fraction of the incoming particles, how would I write this as a boundary condition equation?

Thanks in advance.

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# Boundary Conditions, Continuum Mechanics

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