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unreal velocity at free surface when coupling VOF & DPM

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Old   November 13, 2014, 14:03
Default unreal velocity at free surface when coupling VOF & DPM
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I am modelling bubble plume using VOF and DPM in cubic tank , after some timesteps it seems that the free surface is going up and down especially when the plume reaches to freesurface, and i know this is because of VOF but i dont know how to solve it, after a little it destroys the solution and i have Floating Point Exception Error,

velocity1.jpg

velocity2.jpg

any idea will be appreciated

Last edited by HyperNova; November 14, 2014 at 10:40.
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