Wake instability issues: From circular cylinders to stalled airfoils

被引:12
作者
Meneghini, J. R. [1 ]
Carmo, B. S. [1 ]
Tsiloufas, S. P. [1 ]
Gioria, R. S. [1 ]
Aranha, J. A. P. [1 ]
机构
[1] Univ Sao Paulo, POLI, Dept Mech Engn, NDF, BR-05508 Sao Paulo, Brazil
基金
巴西圣保罗研究基金会;
关键词
Wake; Circular cylinder; Stalled airfoil; Three-dimensional flow structure; FLOW;
D O I
10.1016/j.jfluidstructs.2011.03.018
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Some recent results regarding the global dynamical behaviour of the wake of circular cylinders and airfoils with massive separation are reviewed in this paper. In order to investigate the effect of interference, the three-dimensional instability modes are analysed for the flow around two circular cylinders in tandem. In the same way, the flow around a stalled airfoil is investigated in order to provide a better understanding of the three-dimensional characteristics of wakes forming downstream of a lifting body with massive separation. These results are compared with those found for an isolated cylinder. Some fundamental differences among these flows are discussed. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:694 / 701
页数:8
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