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conditions in ALE boundary conditions

Posted 20 juin 2011, 17:06 UTC−4 1 Reply

Olga Sergienko
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Hello there,

does anybody know how to make conditional boundary conditions in ALE (sorry for tautology). Specifically, I have a freely deforming boundary in ALE which velocity is determined by a solution of Navier-Stokes equations. By definition of my problem, this free boundary should always be positive. At some point in time, the location of that boundary becomes negative. I was wondering whether anybody knows how to impose a condition that it stays positive.

Thanks in advance
1 Reply Last Post 13 juil. 2011, 06:34 UTC−4
sindhuja r
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Posted: 1 decade ago 13 juil. 2011, 06:34 UTC−4
A simple if condition ,like move the boundary only if position has a positive value at that point, might work.
A simple if condition ,like move the boundary only if position has a positive value at that point, might work.

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