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Diverge in 2d dam breaking case

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Old   November 1, 2002, 04:12
Default Diverge in 2d dam breaking case
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Hi all, I tried to use fluent to simulate the typical 2d dam breaking problem. If the viscosity of the liquid phase is set as 1cp, fluent can converge normally. However, if I increase the liquid viscosity to 10000 cp (polymer level), fluent diverge quickly. The analysis settings are PISO+geo+0.8 underrelax in pressure.Any comment or suggestion ?
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