kammury 发表于 2013-7-17 09:36

求协调初始值失败

错误:
“求协调初始值失败
分离群组1

求解模型发现未定义的值
Undefined value found in the stiffness matrix.
There are 192 equations giving NaN/Inf in the matrix rows for the variable mod1.WAr 1p
at coordinates: (0.0684528,0.0188471,0.556), (0.188452,0.0367406,0.47), (0.190441,0.0244181,0.441769), (0.159828,0.106391,0.47), (0.0506905,-0.0269056,0.556), ...
and similarly for the degrees of freedom, NaN/Inf in the matrix columns
最后一个时间步长不收敛”

有没有遇到类似情况的,是不是因为在物理量梯度较大的地方网格划分不够细致引起的?或是其他什么原因,求解!


luomu 发表于 2013-7-18 10:39

这个应该是收敛的问题,改改你一些参数设置,比如初始值什么的,不要将初始值设置为零,给一个很小很小的数值再试试。
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