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发表于 2004-3-13 00:00:33
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遇到一个问题
You are right . But you should know that is the result from staggered grid.
With the grid there is no velocity at the boundary, for example,for 1D problem(N grid):
| | | ...... | | |
IX 1 2 N-1 N <==cell(or grid)
U1 1 2 N-1 N <==U1 position
Here U1 at N(i.e boundary) is no meaning in staggred grid,so
the U1 is 0 at IX=N.
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