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How to get time-varing points coordinates on a moving boundary in time dependent analysis?

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Hi, I am now encountering a problem. My simulation uses NS application mode. Some boundaries will moving with the pressure, so the ALE appl mode is also used. Now because the pressure has related with the curvature of these moving boundaries, so I tried to seed many points on the boundary. Thus, through using the points coordinates, the curvature could be calculated through difference method. And the pressure relating with the curvature is configured in the boundary settings.

I use the function "geominfo" to get coordinates of the points in MATLAB script, but find out that the curvature did not change with the moving boundary.

I tried hard but failed.

Looking forward to reply!

Thank you very much!

0 Replies Last Post 2010年9月16日 GMT+8 上午11:12
COMSOL Moderator

Hello Yuanyuan Shen

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