The settling behaviors of a rectangular particle with different initial orientation angles and length-width ratios were simulated by using distributed Lagrange multiplier/fictitious domain method.

• 摘要为了对方形粒子在二维垂直通道中的沉降运动特性进行研究，应用了拉格朗日乘子/虚拟区域方法对不同初始取向角、不同长宽比情况下方形粒子的沉降运动进行了直接数值模拟。