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各位Foamers大家好,我最近在模拟一个问题,本质是求解一个带源项的稳态laplacian方程,求解遇到了发散。我换了很多求解器,以及更替了SIMPLE与SIMPLEC算法仍然发散。发现采用PCG方法计算到90步发散,采用GAMG方法计算2步就发散了,,因此,我想向大家求助,欢迎大家留言,给出你们宝贵的建议与想法,谢谢!祝好
源项是一个什么样的表达式?是一个常数项还是与方程变量相关的源项?