Comsol moving boundary with loss of mass

by SSS_04
Tags: comsol, dgeometry, mesh, moving boundary, moving mesh
SSS_04 is offline
Jan30-13, 08:26 AM
P: 1
I need some help!My problem is a problem of moving boundary with loss of mass.... I started to use COMSOL and I need to simulate one plate with a hole on the center. And this hole is increasing with the time according to one equation (like a velocity, in m/s) which depend of the stress. Someone knows how to do this? Can I do this whit the moving mesh? Or I should use the DG?
Thank you!
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niklas.r is offline
Feb7-13, 03:09 AM
P: 2
It is not clear to me what exactly you mean with mass loss here. If the structure is changing shape due to applied stress (->strain), use the Moving Mesh interface. If the structure is changing shape due to material removal/addition, use the Deformed Geometry interface. This link gives some more info:
Niklas (COMSOL employee)
ishantj is offline
Feb7-13, 06:22 AM
P: 2
This might help you in explanation.

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