WAKE SYNCHRONIZATION FOR A PAIR OF STAGGERED CYLINDERS IN CROSS-FLOW WITH THE UPSTREAM CYLINDER IN TRANSVERSE OSCILLATION

被引：1
|
作者：
Akbari, M. H. [1 ]
Price, S. J. [2 ]
机构：
[1] Shiraz Univ, Dept Mech Engn, Shiraz 7134851154, Iran
[2] McGill Univ, Dept Mech Engn, Montreal, PQ H3A 2K6, Canada
来源：
ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS | 2010年 / 4卷 / 01期
关键词：
wake synchronization; staggered cylinders; cross-flow; transverse oscillations; Navier-Stokes equations; vortex method; CIRCULAR-CYLINDERS;
D O I：
10.1080/19942060.2010.11015299
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Numerical simulations are presented for the cross-flow over two staggered circular cylinders in the low subcritical Reynolds number regime with Re=1500, with the upstream of the two cylinders subject to a transverse harmonic oscillation. A vortex method is implemented for the solution of the unsteady two-dimensional Navier-Stokes equations. The effect of varying the frequency of oscillation of the upstream cylinder, with fixed amplitude of oscillation, is investigated. The numerical flow visualization results reveal a synchronization of the wake structure with the oscillating cylinder for different ranges of the excitation frequency. Four distinct synchronization modes are identified, and are compared with available experimental data.
引用
收藏
页码：58 / 70
页数：13
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