Determination of the critical Shields number for particle erosion in laminar flow

被引：89
作者：
Ouriemi, Malika
Aussillous, Pascale
Medale, Marc
Peysson, Yannick
Guazzelli, Elisabeth
机构：
[1] Polytech Marseille, UMR 6595, CNRS, IUSTI, F-13453 Marseille 13, France
[2] IFP Energies Nouvelles, F-92852 Rueil Malmaison, France
来源：
PHYSICS OF FLUIDS | 2007年 / 19卷 / 06期
关键词：
D O I：
10.1063/1.2747677
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
We present reproducible experimental measurements for the onset of grain motion in laminar flow and find a constant critical Shields number for particle erosion, i.e., theta (c)=0.12 +/- 0.03, over a large range of small particle Reynolds number: 1.5x10(-5)<= Re-p <= 0.76. Comparison with previous studies found in the literature is provided. (c) 2007 American Institute of Physics.
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