## 留言板

 引用本文: 王叶龙. 相互碰撞的圆粒子在竖直通道中沉降的数值研究[J]. 应用数学和力学, 2006, 27(7): 859-866.
WANG Ye-long. Simulation of the Sedimentation of Two Circular Particles With Collision Considered in a Vertical Channel[J]. Applied Mathematics and Mechanics, 2006, 27(7): 859-866.
 Citation: WANG Ye-long. Simulation of the Sedimentation of Two Circular Particles With Collision Considered in a Vertical Channel[J]. Applied Mathematics and Mechanics, 2006, 27(7): 859-866.

## 相互碰撞的圆粒子在竖直通道中沉降的数值研究

###### 作者简介:王叶龙(1978- ),男,安徽人,博士(Tel:+86-571-87952221;E-mail:wyl@zju.edu.cn).
• 中图分类号: O359+.2

## Simulation of the Sedimentation of Two Circular Particles With Collision Considered in a Vertical Channel

• 摘要: 采用格子Boltzmann方法，数值模拟了考虑相互碰撞的两圆粒子的沉降，分析了Re数、初始相对位移及通道宽度对粒子沉降的影响．结果表明，在0.1＜Re＜20范围内， 粒子沉降具有周期性．Re数越大，两圆粒子的相互作用越强，粒子横向位移的幅度也越大．在大Re数时，沉降的过程是两个粒子交替领先；在较小Re数时，当后面的粒子接近的时候，领先的粒子被向右侧推了一段后仍会继续领先；对中等Re数，原先在后面的粒子在第一次加速后将取得领先位置并一直保持下去．粒子的初始分布位置对沉降的形态影响不大．管道宽度变化时，粒子总的沉降特性不变，而周期改变，管道越宽，周期越长．
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##### 出版历程
• 收稿日期:  2004-08-21
• 修回日期:  2006-04-04
• 刊出日期:  2006-07-15

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