液固交互过程中固体破碎现象的实时模拟

Real-time Simulation of Solid Fragmentation in Liquid-solid Interaction

提出一种适用于液固交互过程中的固体破碎模拟方法.针对传统液固交互边界处理算法复杂,难以实时模拟固体破碎的缺陷,本文基于SPH算法,提出对液体与固体使用统一的粒子表示,将预测校正方案应用于处理液固交互过程中固体之间的碰撞问题,从而将固体破碎过程简化为固体碎片边界粒子生成的过程,并使用形状匹配算法对固体碎片进行形状约束.实验结果证明,采用文中方法能够实时模拟出液固交互过程中,细节丰富的固体破碎现象,效果真实.

We propose a novel technique for the simulation of the resulting solid fragmentation in liquid-solid interaction. The tradi- tional boundary handling algorithm for liquid-solid interaction is complex and is difficult to generate solid fragmentation. Based on a Smoothed Particle Hydrodynamics method for the simulation of both liquids and solids, our novel method allows us to simplify the re- al-time fracture as the real-time simulation of fragmentation. The predictor-corrector scheme is applied to deal with the problem of collisions between the solid in liquid-solid interaction. The shape matching algorithm is used to correctly describe the dynamic interac- tion of a variety of different forms of solid. Experimental results show that the proposed algorithm is easy to simulate the dynamic effects of the liquid-solid interaction, richly detailed solid fragmentation.