Thus the difficulties of discontinuous velocity gradient and the stress singularity at the exit point are avoided, and the expense of computation is reduced.
这样回避了速度梯度间断的困难，缓和了出口处应力奇性引起的矛盾，同时又减少了计算量。
In the point of view of meso - mechanics, the multi-zone boundary element method is used to analyze the behavior of the discontinuous system.
同时，多域边界元法也从细观力学的角度被用来探索这种不连续系统的平面应变问题。
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