Investigation of flow characteristics around a stationary circular cylinder with an undulatory plate

被引：24

作者：

Wu, J. ^{[1
]}

Shu, C. ^{[2
]}

Zhao, N. ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Coll Aerosp Engn, Dept Aerodynam, Nanjing 210016, Jiangsu, Peoples R China

[2] Natl Univ Singapore, Dept Mech Engn, Singapore 119260, Singapore

来源：

EUROPEAN JOURNAL OF MECHANICS B-FLUIDS | 2014年 / 48卷

基金：

中国国家自然科学基金;

关键词：

Stationary circular cylinder; Undulatory plate; Laminar flow; Immersed boundary-lattice Boltzmann; method; MOVING-OBJECTS; WAKE; DRAG; SIMULATION; SUPPRESSION; STREET; WALL;

D O I：

10.1016/j.euromechflu.2014.04.007

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The flow characteristics around a stationary circular cylinder with an undulatory plate have been numerically investigated in this work. This is the extension of our previous study on flows over a cylinder with a rigid flapping plate (Wu and Shu, 2011). In this study, the effect of plate flexibility on the flow characteristics is extensively examined by varying the frequency and amplitude of motion and the length of the plate. The laminar flow at Reynolds number of Re = 100 is considered. Based on the numerical results obtained, some interesting flow patterns and drag reduction are observed. Meanwhile, the physical mechanisms elucidating good performance of the undulatory plate are also provided. As compared with the rigid plate, the flexible plate performs better in the flow control of bluff body. (C) 2014 Elsevier Masson SAS. All rights reserved.

引用

页码：27 / 39

页数：13

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