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2-phase DPM- Divergence problem

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Old   January 12, 2011, 13:41
Default 2-phase DPM- Divergence problem
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viva
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Hi:
I am trying to simulate gs-solid flow in a pipe using DPM. After some iterations it gives me error:

Divergence detected in AMG solver: epsilon

Please suggest!!

Thanks
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Old   January 13, 2011, 02:53
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Phan Hoang Nam
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You should use time step size small enough to satisfy the Courant number if explicit scheme is used.
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Old   January 13, 2011, 02:55
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Thanks alot for the reply. I am using time step = 0.0001. I still need to reduce it.

thanks
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