网格边长应该多少？

zxm001

在MOLDFLOW  HELP 里有以下内容，请高手帮忙解释下：
The mesh density should be optimized as far as possible. It is advisable to accept the default Global edge length as an initial estimate. This length is often too coarse and may have to be refined to 1/3 to 1/2 of the initial value. Alternatively a Global edge length should be about 2 times the nominal wall thickness for a 3D mesh and 2 to 5 times the nominal wall thickness for a Dual Domain mesh. You will now alter the mesh density.

yanyi214

我也想知道~`高手说说嘛~~