EXPERIMENTAL STUDY ON THE NEAR WAKE BEHIND TWO STAGGERED CYLINDERS OF UNEQUAL DIAMETERS

被引：0

作者：

Gao, Yangyang ^{[1
]}

Wang, Xikun ^{[1
]}

Tan, Soon Keat ^{[1
]}

机构：

[1] Nanyang Technol Univ, Maritime Res Ctr, Nanyang Environm & Water Res Inst, Sch Civil & Environm Engn, Singapore 639798, Singapore

来源：

PROCEEDINGS OF THE ASME 31ST INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING, 2012, VOL 5 | 2012年

关键词：

CIRCULAR-CYLINDERS; EQUAL DIAMETER; FLOW; FORCES;

D O I：

暂无

中图分类号：

P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

The wake structure behind two staggered circular cylinders with unequal diameters was investigated experimentally using the particle image velocimetry technique (PIV). This investigation was focused on the variations of flow patterns in terms of incident angle at Reynolds number Re=1200. Comparisons of the time-averaged flow field of two staggered cylinders with unequal diameters at different angles were made to elucidate the mean flow characteristics. The characteristics of Reynolds shear stress contours at different incident angles and spacing ratios were also investigated. The results showed that with increasing of incident angle, the scale of Reynolds stress contours behind the upstream cylinder becomes larger, as well as the effect of spacing ratio on Reynolds stress contours.

引用

页码：113 / 120

页数：8

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