SEPARATION AND FLOW REVERSAL IN SWIRLING FLOWS IN CIRCULAR DUCTS

被引：50

作者：

LAVAN, Z

NIELSEN, H

FEJER, AA

机构：

[1] Illinois Institute of Technology, Research Institute, Chicago, IL

来源：

PHYSICS OF FLUIDS | 1969年 / 12卷 / 09期

关键词：

D O I：

10.1063/1.1692738

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The swirling motion of a laminar incompressible viscous flow in a circular duct is studied. The duct consists of two smoothly joined sections, one stationary and the other rotating with a constant angular velocity. A linearized analytical solution, valid for flows having small Reynolds numbers and large swirl ratios, is developed. Solutions for a wider range of Reynolds numbers and swirl ratios are obtained by numerically solving the discretized angular momentum and vorticity transport equations. The occurrence of flow reversal on the axis and near the tube wall is studied, in particular, and conditions for incipient flow reversal are established.

引用

页码：1747 / &

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