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Gavin_wu

新虫 (小有名气)

[求助] 浮点溢出x-momentum ->Increasing relaxation sweeps!已有1人参与

我首先进行定常计算,质量流量入口,压力出口,收敛后再进行大涡模拟,设置了interface,而且网格质量是0.35以上(ICEM),在求解一段时间后就会出现如下情况
# Divergence detected in AMG solver: x-momentum -> Increasing relaxation sweeps!

reversed flow in 7103 faces on pressure-outlet 72.

Divergence detected in AMG solver: x-momentum
Divergence detected in AMG solver: y-momentum
Divergence detected in AMG solver: z-momentum
Divergence detected in AMG solver: pressure correction
Divergence detected in AMG solver: pressure correction
Divergence detected in AMG solver: x-momentum
Divergence detected in AMG solver: y-momentum
Divergence detected in AMG solver: z-momentum
Divergence detected in AMG solver: pressure correction
Divergence detected in AMG solver: pressure correction

我定常计算时修改松弛系数后就不会出现 reversed flow in 7103 faces on pressure-outlet 72. 但是也会浮点溢出

这个问题已经困扰我两周多。。。
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快乐的丹丹

新虫 (初入文坛)

楼主,遇到相同问题,求指教
4楼2017-08-15 09:05:51
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