[求助]gambit中如何指定边界层的方向？

yzwu1979

[这个贴子最后由yzwu1979在 2005/06/01 09:20am 第 2 次编辑]

我的目标是生成如附件所示的那种网格，汽车周围被分成内区域和外区域，外区域用六面体网格，车体表面使用三角形网格，从车体表面向外拉几层三棱柱网格，内区域其他部分用四面体网格，内外区域之间使用金字塔网格。
我的问题：我在生成车体表面网格后，准备向外拉伸三棱柱时，边界层的方向指向车体内部，我查看了Gambit帮助也没有明白。请问用过Gambit的朋友，该如何修改边界层的方向？
附：Gambit帮助如下：
1.Changing Direction by Means of the Mouse
To change the direction of the boundary layer by means of the mouse, Shift-middle-click the entity to which the boundary layer is attached.
2.Changing Direction by Means of the List Box
When you specify an edge or face in the Attachment list box on the Create Boundary Layer form, the list box displays both the specified entity itself and the face or volume that defines the direction of the boundary layer. To change the direction of the boundary layer by means of the list box, you can perform either of the following operations.
Specify the edge or face again in the Attachment list box
Use the Edge List or Face List paired pick-list form to specify the entity and direction of the boundary layer (see "Using the Edge List or Face List Form," below).

birdli2000

shift+中键！

yzwu1979

谢谢，我用Shift+中键点击，但是法线方向仍然不变

nepie2001

好像中文帮助里讲过你看看吧