Measurements of the flow fields around two square cylinders in a tandem arrangement

被引：66

作者：

Kim, Moon Kyoung ^{[2
]}

Kim, Dong Keon ^{[3
]}

Yoon, Soon Hyun ^{[4
]}

Lee, Dae Hee ^{[1
]}

机构：

[1] Inje Univ, Sch Mech & Automot Engn, Inje Engn Inst, Gimhae 621749, South Korea

[2] Chang Won Coll, Dept Mech Design, Chang Won, South Korea

[3] Inst Engn Mech Technol, Pusan, South Korea

[4] Pusan Natl Univ, Sch Mech Engn, Pusan 609735, South Korea

来源：

JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | 2008年 / 22卷 / 02期

关键词：

square cylinder; tandem arrangement; flow fields; critical spacing; strouhal number; particle image velocimetry;

D O I：

10.1007/s12206-007-1041-6

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The velocities, turbulence intensities, Reynolds shear stresses, and turbulent kinetic energies of the flow fields around two square cylinders in a tandem arrangement were investigated using particle image velocimetry (PIV). The experiments were made for the spacing between the two cylinders ranging from s/D = 0.5 to 10.0 and two Reynolds numbers of 5,300 and 16,000. The results showed that the flow patterns at s/D <= 2.0 were drastically different from those at s/D >= 2.5 for both Reynolds numbers. The sudden change in the flow patterns depended on the reattachment of the shear layer separated from the upstream cylinder.

引用

页码：397 / 407

页数：11

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