ANALYSIS OF THE DRAG REDUCTION USING VORTEX KINEMATICS BEHIND A BLUFF BODY

被引:0
作者
Bruneau, Charles-Henri [1 ]
Creuse, Emmanuel
Depeyras, Delphine [1 ]
Gillieron, Patrick
Mortazavi, Iraj [1 ]
机构
[1] IMB Univ Bordeaux, INRIA Bordeaux Sud Ouest MC2, F-33405 Talence, France
来源
PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER CONFERENCE - 2010 - VOL 1, PTS A-C | 2010年
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中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
The aim of this work is to analyse one of the mechanisms that contributes to the drag forces, namely the distance of the vortices to the back wall of a bluff body. The study shows the strong relationship between this distance and the pressure forces at the back. Indeed, the active control processes modify the trajectory of the vortices to accelerate their removal from the wall and consequently reduce the drag coefficient.
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页码:1065 / 1070
页数:6
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