本帖最后由 neuted 于 2010-11-11 09:47 编辑
在网上查到的:cfx和fensap一样完全基于3D网格,没有fluent的2D网格的选项,算2D东西要画3D的,厚度上薄薄一层网格。
于是我在ANSYS中建了厚度只有一个网格的模型,并划分了网格,然后生成.cdb文件,命令如下:
/prep7
/units,si
et,1,fluid142
cylind,,0.9,0.25,0,0,0.5
cylind,,0.63,1,0.24,0,0.5
vovlap,all
cylind,,0.9,0,-0.9,0,0.5
vdele,3,4,1,1
cylind,,0.002,0.24,0,0,0.5
cylind,,0.002,0,-0.9,0,0.5
vsel,s,,,1,3,2
vovlap,all
vsel,s,,,2,5,3
vovlap,all
numcmp,all
allsel
vdele,2,3,1,1
numcmp,all
allsel
mshkey,2
mshape,0,3D
lsel,s,,,3
lesize,all,,,180
lsel,s,,,18
lesize,all,,,48
lsel,s,,,6
lesize,all,,,50
lsel,s,,,11
lesize,all,,,126
lsel,s,,,19
lesize,all,,,54
lsel,s,,,15
lesize,all,,,2
lsel,s,,,1,2
lsel,a,,,9,13,4
lsel,a,,,8,14,6
lesize,all,,,1
vsweep,1,6,5
mshkey,2
mshape,0,3D
lsel,s,,,22,26,4
lesize,all,,,180
lsel,s,,,27,29,2
lesize,all,,,180
lsel,s,,,7,10,3
lsel,a,,,23,24
lesize,all,,,1
vsweep,2,14,13
cdwrite,db,ANSYS_CFX try try,cdb
网格图如下:
请高手看看这样划分网格有没有问题! |