FINITE ASPECT RATIO EFFECTS ON VORTEX SHEDDING BEHIND 2 CYLINDERS AT ANGLES OF INCIDENCE

被引：8

作者：

ROONEY, DM

RODICHOK, J

DOLAN, K

机构：

[1] Department of Engineering, Hofstra University, Hempstead, NY

[2] H.E.C. Energy and Design Services, Smithtown, NY

[3] Central Sprinkler Corporation, Lansdale, PA

来源：

JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME | 1995年 / 117卷 / 02期

关键词：

D O I：

10.1115/1.2817133

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Wind tunnel tests were undertaken at subcritical Reynolds numbers to determine the vortex shedding characteristics behind a pair of finite circular cylinders at distances from one to six diameters apart and at all angles to one another. In addition, individual finite cylinders with aspect ratios 0.67 less than or equal to L/D less than or equal to 11.33 were examined to determine the effect of aspect ratio on shedding frequency, and to measure the frequency of the tip vortex when it is present. Aspect ratio wets found to be a significant factor in the difference between shedding frequencies of the two cylinders at oblique angles. It was also found that ''lock-on'' of the two frequencies occurred when longer aspect ratio cylinders were upstream of shorter ones, but not in the reverse case.

引用

页码：219 / 226

页数：8

共 20 条

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