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Moving Mesh Question

Posted May 1, 2012, 8:54 a.m. EDT 1 Reply

Daniel Sutton
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I wonder if anyone knows how (if it is possible) to expand/contract a boundary using a moving mesh, as opposed to providing a fixed displacement or velocity.
1 Reply Last Post May 1, 2012, 9:05 a.m. EDT
Daniel Sutton
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Posted: 1 decade ago May 1, 2012, 9:05 a.m. EDT
I tried to write a boundary condition dependent on the x-coordinate e.g. f(t)*(x/a) where -a < x < a so that the boundary alters in length according to f().

But this didn't work out - I got an error saying 'Circular variable dependency detected'.
I tried to write a boundary condition dependent on the x-coordinate e.g. f(t)*(x/a) where -a < x < a so that the boundary alters in length according to f(). But this didn't work out - I got an error saying 'Circular variable dependency detected'.

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