Question

fluent的默认长度单位 mm 或cm还是m？

Answer 1

默认是m啊，
参看帮助文件
5.2 Units in Grid Files
Some grid generators allow you to define a set of units for the mesh dimensions. However, when you read the grid into FLUENT, it is always assumed that the unit of length is meters. If this is not true, you will need to scale the grid, as described in Section 6.8.10.

这里说的够清晰吧

Answer 2

fluent 默认长度是m, 通过scale grid 将gambie建模中的非m单位转化为m

Answer 3

默认当然是 m

Answer 4

都是国标单位，所以是m

Answer 5

m