Effect of steady rotation on low Reynolds number vortex shedding behind a circular cylinder

被引：3

作者：

Satish, Paluri ^{[1
]}

Patwardhan, Saurabh S. ^{[2
]}

Ramesh, O. N. ^{[2
]}

机构：

[1] JLR, CFD Power Train Grp, Whitley CV3 4LF, England

[2] Indian Inst Sci, Dept Aerosp Engn, Bangalore 560012, Karnataka, India

来源：

JOURNAL OF FLUIDS AND STRUCTURES | 2013年 / 41卷

关键词：

Oblique vortex shedding; Rotation; Stepped cylinder; FLOW; WAKES; OBLIQUE; MODEL; WALL;

D O I：

10.1016/j.jfluidstructs.2013.05.007

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this paper control of oblique vortex shedding in the wake behind a straight circular cylinder is explored experimentally and computationally. Towards this, steady rotation of the cylinder about its axis is used as a control device. Some limited studies are also performed with a stepped circular cylinder, where at the step the flow is inevitably three-dimensional irrespective of the rotation rate. When there is no rotation, the vortex shedding pattern is three dimensional as described in many previous studies. With a non-zero rotation rate, it is demonstrated experimentally as well as numerically that the shedding pattern becomes more and more two-dimensional. At sufficiently high rotation rates, the vortex shedding is completely suppressed. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：175 / 186

页数：12

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