Two-dimensional vortex shedding of a circular cylinder

被引：42
|
作者：
Wen, CY [1 ]
Lin, CY [1 ]
机构：
[1] Da Yeh Univ, Dept Mech Engn, Chang Hwa 51505, Taiwan
来源：
PHYSICS OF FLUIDS | 2001年 / 13卷 / 03期
关键词：
D O I：
10.1063/1.1338544
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The Strouhal-Reynolds number relationship for the two-dimensional (2-D) vortex shedding of a circular cylinder at low to medium Reynolds numbers (Re, ranging from 45 to 560) is investigated experimentally. Both horizontal and vertical soap film tunnels are used to set up a truly 2-D experiment. It is found that two separate 3-D instabilities of the natural wake at Re congruent to 180 and 260 disappear. The Strouhal-Reynolds number curve is in good agreement with the 2-D computations of Barkley and Henderson [J. Fluid Mech. 322, 215 (1996)]. The 2-D asymptote of 0.2417 of Strouhal number is also approached. (C) 2001 American Institute of Physics.
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页码：557 / 560
页数：4
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