VISCOSITY PROPERTIES OF SUSPENSIONS AT LIMITING CONDITIONS FOR TURBULENT DRAG REDUCTION

被引：27

作者：

KEREKES, RJE

DOUGLAS, WJM

机构：

[1] Department of Chemical Engineering, McGill University and Pulp and Paper Research Institute of Canada, Montreal,QC, Canada

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 1972年 / 50卷 / 02期

关键词：

Viscosity - Buoyancy - Drag reduction;

D O I：

10.1002/cjce.5450500215

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

On the basis of a postulated mechanism of drag reduction, the overall viscosity properties of suspensions are used to establish general quantitative criteria for the upper and lower limit on the conditions at which turbulent drag reduction can occur in suspensions of rigid, elongated, nearly neutrally-buoyant particles. Experimental data obtained in drag reducing suspensions of nylon fibres in water verified, quantitatively, the criterion for the upper limit. The experimental data obtained were not sufficient for a precise test of the lower limit; however, these data did show the existence of a practical lower limit, at a value slightly larger than the predicted one. Copyright © 1972 Canadian Society for Chemical Engineering

引用

页码：228 / &

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