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Transient simulation divergence problem

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Old   August 22, 2023, 12:21
Question Transient simulation divergence problem
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Liam Wan
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I'm doing a simulation of the two-phase flow, using UDS(user defined scalar). And I found that the calculation diverges when the time step is small (0.01s), but converges when the time step is large (1.0s).

Why does this happen?

Any help is much appreciated!!
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divergence, transient, two-phase flow, uds

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