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How do I use initial velocity by dynamic mesh method?

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Old   June 28, 2011, 03:42
Default How do I use initial velocity by dynamic mesh method?
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These days I am simulating a falling sphere that falls in to the water with initial velocity of 2.17 m/s .In this simulation we used axisymmetry geometry and also layering dynamic mesh method. Every time I set this velocity in the dynamic mesh (6 DOF) initial velocity panel (center of gravity motion) , unfortunately, after one time step, the center of gravity velocity in dynamic mesh zone panel changes to zero. and falling sphere falls with 0 m/s initial velocity. Now can some one help me to solve this problem?
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axisymmetric, dynamic meshing, layering, vof model

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