Volume 11, Issue 4
Statistics of Particle Suspensions in Turbulent Channel Flow

Lihao Zhao and Helge I. Andersson

10.4208/cicp.080510.150511s

Commun. Comput. Phys., 11 (2012), pp. 1311-1322.

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  • Abstract

Particle dynamics in a turbulent channel flow is considered. The effects of particle concentration and Reynolds number on the particle velocity statistics are investigated. Four different particle response times, τ+=1, 5, 30 and 100, are examined for three different Reynolds numbers, Re∗=200, 360 and 790 (based on channel height and friction velocity). The particle concentration evolves with time and statistics obtained during three different sampling periods might be distinctly different. The mean and fluctuating particle velocities are substantially affected both by the particle response time and by the Reynolds number of the flow. 

  • History

Published online: 2012-04

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