Experimental detection of flow separation over a plain flap by wall shear stress analysis with and without steady blowing

被引：9

作者：

Chabert, Timothee ^{[1
]}

Dandois, Julien ^{[1
]}

Garnier, Eric ^{[1
]}

Jacquin, Laurent ^{[1
]}

机构：

[1] Onera French Aerosp Lab, F-92190 Meudon, France

来源：

COMPTES RENDUS MECANIQUE | 2014年 / 342卷 / 6-7期

关键词：

Flow separation; Flow control; Flap; Steady blowing; TURBULENT-BOUNDARY-LAYER; CONTROL-SYSTEM; AIRFOIL;

D O I：

10.1016/j.crme.2014.01.013

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The present article deals with the flow separation detection over a plain flap at a Reynolds number of 2 . 10(6) by the analysis of the wall shear stress fluctuations. Natural flow separation is first considered with the study of the evolution of wall shear stress fluctuations measured along the flap chord when the flap deflection angle is progressively increased. Then, steady blowing is applied and its effect on wall shear stress fluctuations is analysed. For both controlled and uncontrolled cases, flow separation criteria are defined, studied and compared. (C) 2014 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.

引用

页码：389 / 402

页数：14

共 23 条

[1] Large-Eddy Simulation of Natural Low-Frequency Oscillations of Separating-Reattaching Flow Near Stall Conditions [J].