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比如我想把一个block其中一个面的1/2部分单独列出来作为一个新面,用来施加某些边界条件,但这样在生成网格时就会报错,一般是这种提示“face 0 in patch 1 does not have neighbour cell face”,难道除了再生成一个block外没有其他办法了吗?
还可以用 topoSet 结合 createPatch 来实现,不过这样得到的面不一定是精确地 1/2,因为createPatch 只是从已经画好的网格上选一些面来生成一个新边界。