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发表于 2010-6-16 11:26:46
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来自 广东深圳
我找了一下手册是这样说的
6.6.6
in fine soils,the pore water may be able to sustain a significant tesion:the urer may set a limiting tension,by means of the WATER tens command (to specify the same limit everywhere) or the INITIAL ftens command (to specify the limit over a certain range of gridpoints).the tension limit is always a negative number or zero. when the fluid pressrue tries to fall below the set limit, "cavitation"occurs,and the pressrue is the set to zero.the satruation may then also drop below 1,depending on conditions. |
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