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dynamic mesh help at interface

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Old   December 11, 2012, 12:08
Default dynamic mesh help at interface
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Does anyone know what kind of dynamic mesh boundary should apply at teh interfaces.

When I run my case, I just set the pairs of interfaces without apply any dynamic mesh (such as rigid motion, deforming, ect), and when it runs, later one it will have a huge gap at interfaces or sometimes two interfaces overlapped and negative volume found, please help, many thanks.

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