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发表于 2003-12-23 20:11:39
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fluent帮助中vof的几个初级问题
1。定义Vof模型时,选择两相,但是定义material时,只定义了water,那么air是默认的另
外一相?还是在哪里有另外的定义?
materials for both phases need to be defined, however, only water need to be copied from the database, as air exists by default. Note the difference between defining a material type for a phase and copying a matrial from database.
2。哪一相是可压的,在哪里定义?不是在operation conditions那里那个什么variable-d
ensity parameter吧
should be impressible flow
3。设定边界条件的时候,帮助上说需要给定mixture以及second phase的边界条件,我想问
的是,如果对于简单的给定流量的三维明渠流动,进口和出口的条件应该怎么样给定?特别是进口
specify pressure outlet for the mixture (top air), specify velocity inlet for the mixture (below water) and pahse fraction as 1 for the second phase (water)
4。在patch初始水面的时候,用了两个点(0.66,0)(1,1)而标记了一个区域,这个区
指的是 (0.66<x<1,0<y<1)?还是怎么标记的?那如果比较复杂的区域,应该怎么标记?
there are different types of region |
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