Numerical study of non-spherical particle-laden flows

被引：0
|
作者：
Cui Z. [1 ]
Wang Z. [1 ]
Jiang X. [1 ]
Zhao L. [1 ]
机构：
[1] Department of Engineering Mechanics, Tsinghua University, Beijing
来源：
Advances in Mechanics | 2022年 / 52卷 / 03期
关键词：
non-spherical particle-laden flow; numerical study; particles orientation and rotation; turbulence;
D O I：
10.6052/1000-0992-22-006
中图分类号：
学科分类号：
摘要：
Non-spherical particle-laden flows are commonly seen and important in nature and industrial processes. The particle's rotational and orientational behaviors could affect the forces and torques acting on the particle from ambient fluid flow. To accurately capture the motion of non-spherical particles, especially for angular particle dynamics, most numerical studies of non-spherical particle-laden flows are carried out in the Euler-Lagrange frame. There are two most popular numerical approaches: the point-particle method and the particle-resolved method. This paper comprehensively and systematically summarizes these methods and significant recent findings about non-spherical particles in simple and turbulent flows. The mechanism of particle orientation and rotation by suspended nonspherical particles, as well as the modulation effect of particles on turbulent drag reduction, are discussed. Furthermore, the key and unsolved problems of non-spherical particle-laden flows for future study are proposed at the end of the paper. © 2022 Advances in Mechanics.
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页码：623 / 672
页数：49
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