Falling clouds of particles in vortical flows

被引：5

作者：

Marchetti, Benjamin ^{[1
]}

Bergougnoux, Laurence ^{[1
]}

Guazzelli, Elisabeth ^{[2
]}

机构：

[1] Aix Marseille Univ, CNRS, IUSTI, F-13453 Marseille, France

[2] Univ Paris, CNRS, Matiere & Syst Complexes MSC UMR 7057, F-75205 Paris, France

来源：

JOURNAL OF FLUID MECHANICS | 2021年 / 908卷

关键词：

suspensions; particle; fluid flow; SETTLING VELOCITY; HEAVY-PARTICLES; MOTION; TURBULENCE;

D O I：

10.1017/jfm.2020.883

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The coupling between particle-particle and particle-fluid interactions is examined by studying the sedimentation of clouds of spheres in a model cellular flow at a small but finite Reynolds number. The model flow consists of counter-rotating vortices and is aimed at capturing key features of the vortical effects on particles. The dynamics of clouds settling in this vortical flow is investigated through a comparison between experiments and point-particle simulations.

引用

页数：21

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