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发表于 2011-10-8 00:28:25
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来自 新加坡
北鹰南飞 发表于 2011-10-6 07:22
有空还是好好看看SPH的算法理论吧,帮助中有,LS_DYNA中介绍的更详细,同是帮助中的的几句话,不知道你是 ...
A rectangular region is computed at the beginning of the analysis as the bounding box within which the particles will be tracked.
This fixed rectangular box is 10% larger than the overall dimensions of the whole model, and it is centered at the geometric center of the model. As the analysis progresses,
if a particle is outside this box, it behaves like a free-flying point mass and does not contribute to smoothed particle hydrodynamic calculations. 不是飞溅出去的颗粒吗? 跑出去几个smoothing length 影响域之外了,它如何还能参与计算?不考虑体力,保持自己的速度飞出去了吧?
If the particle reenters the box at a later stage, it is once again included in the calculations.
这是自然的
是不是我的英文太差了,理解错了,毕竟两年多没有碰过了。 |
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