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请教大神们一个问题,在给定k和epsilon初始边界值的试时候,发现如果他们的初场给0,计算时候直接就发散,改为非0的时候就可以算下去,这是为什么啊?请大神多多指点
Hi,
请注意epsilon的不能赋值为0,因为在kEpsilon方程中的湍流粘度定义为:
\begin{equation} \nu_t=C \frac{k^2}{\varepsilon} \end{equation}
明显的如果epsilon为0,湍流粘度不可以计算。