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相互碰撞的圆粒子在竖直通道中沉降的数值研究

王叶龙

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.
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

基金项目: 教育部高等学校博士学科点专项科研基金资助项目(20030335001)
详细信息
    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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