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Fluent我们不太清楚开发人员是如何做的数值稳定性工作。不过如果你看OpenFOAM源代码会发现OpenFOAM里面对湍流方程的守恒、有界、减少数值扩散、以及针对网格质量的自适应数值调整是非常非常多的。没有一个方程在openfoam中是直接求解的。So~
@liujiaming 把你的截图发出来看看?和网格关系非常大。我感觉你的网格变形过大。