针对传统基于网格方法不能有效模拟大变形问题的现状,本文引入SPH(Smoothed Particle Hydrodynamic)方法模拟液态钢渣(文中简称液渣)与粒化轮的碰撞过程.因液渣物性参数尚不完善,故以铝液代替并使用SPH方法建模,粒化轮则用FEM(Finite Element Method)建模,并通过接触算法实现FEM-SPH的耦合,研究了粒化轮转速、铝液的流速等因素对碰撞过程铝液液滴体积大小的影响.模拟结果表明:当SPH粒子承载质量为2.04×10-4 kg时,粒化轮转速达到900 rad/min;粒化前铝液流速为1m/s时粒化效果较好且体积多分布在1 330～1 930 mm3;碰撞后粒子运动速度多集中在5～ 25 m/s.
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