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中文摘要：
解决粗糙的粒子的速度的计算第一被探讨，与没有可调节的参数的加速的 Stokesian 动力学，在哪个远回答，对粒子起作用而不是粒子速度的力量被选择为依赖变量考虑内部粒子的水动力学相互作用。球形的粒子的一个简单立方的数组的沉积被模仿并且与可得到的结果相比验证并且验证数字代码和计算计划。改进方法把一样作为象往常一样加速的 Stokesian 动力学做的顺序 O (N 木头 N ) 的计算费用。然后，更多的现实主义的随机的暂停沉积在 Mont Carlo 方法的帮助下被调查。计算结果与试验性的适合同意很好。最后，更好的连贯的粒子的沉积，经常在河口环境被观察，在沿海的工程表现为一个进一步的应用程序。
英文摘要：
The calculation of settling speed of coarse particles is firstly addressed, with accelerated Stokesian dynamics without adjustable parameters, in which far field force acting on the particle instead of particle velocity is chosen as dependent variables to consider inter-particle hydrodynamic interactions. The sedimentation of a simple cubic array of spherical particles is simulated and compared to the results available to verify and validate the numerical code and computational scheme. The improved method keeps the same computational cost of the order O（NlogN） as usual accelerated Stokesian dynamics does. Then, more realistic random suspension sedimentation is investigated with the help of Mont Carlo method. The computational results agree well with experimental fitting. Finally, the sedimentation of finer cohesive particle, which is often observed in estuary environment, is presented as a further application in coastal engineering.
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