本文对絮体的分形结构模型、絮体成长过程的计算机模拟方法和模拟结果的分析方法进行了系统的介绍，以期推动此项技术的应用研究。
This paper systemically introduces the fractal structure models, computer simulations and analysis methods of flocs in order to promote application of this technique.
基于刚性体推动模型，采用步长自适应技术根据模型的运算需要选择适合的时间步长。
Based on the rigid pushing model, a FE model with auto-increment technique was proposed.
基于刚性体推动模型，采用步长自适应技术根据模型的运算需要选择适合的时间步长。
Based on the rigid pushing model, a FE model with auto-increment technique was proposed.
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