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网格交流区
@搬运工 后来我发现我这个问题不是周期性问题，虽然结构具有周期性，谢谢你的解答:happy:
块就是将你的整个计算区域分割成几个区域，每个区域有各自的网格分布规律； 模型应该是你计算的几何外形吧
