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Pressure diverged when using dynamic mesh

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Old   February 4, 2014, 14:47
Default Pressure diverged when using dynamic mesh
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Chenguang Li
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Hi all,

I'm running a case using dynamic mesh to simulate flow in a valve. But the pressure solution is going diverged (fluctuation, value keeps going up and down), so the dynamic mesh is always generating negative volume.

Yesterday, I try to enable the smoothing function in dynamic mesh model. It worked, the pressure field became reasonalbe. But today I tried again, it doesn't work anymore.

OMG, who can help me. I just don't know what's the reason.

Thanks.
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Old   February 5, 2014, 17:11
Default Initialization
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Chenguang Li
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I changed initialization values. It seems work well now.
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