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

Timothée Chabert; Julien Dandois; Éric Garnier; Laurent Jacquin

doi:10.1016/j.crme.2014.01.013

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

Timothée Chabert, Julien Dandois, Éric Garnier, Laurent Jacquin

ONERA Office National d'Etudes et Recherches Aerospatiales

Research output: Contribution to journal › Short survey › peer-review

Abstract

The present article deals with the flow separation detection over a plain flap at a Reynolds number of 2{dot operator}10⁶ 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.

Original language	English
Pages (from-to)	389-402
Number of pages	14
Journal	Comptes Rendus - Mecanique
Volume	342
Issue number	6-7
DOIs	https://doi.org/10.1016/j.crme.2014.01.013
Publication status	Published - 1 Jan 2014
Externally published	Yes

Keywords

Flap
Flow control
Flow separation
Steady blowing

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10.1016/j.crme.2014.01.013

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

abstract = "The present article deals with the flow separation detection over a plain flap at a Reynolds number of 2\{dot operator\}106 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.",

keywords = "Flap, Flow control, Flow separation, Steady blowing",

author = "Timoth{\'e}e Chabert and Julien Dandois and {\'E}ric Garnier and Laurent Jacquin",

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language = "English",

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T1 - Experimental detection of flow separation over a plain flap by wall shear stress analysis with and without steady blowing

AU - Chabert, Timothée

AU - Dandois, Julien

AU - Garnier, Éric

AU - Jacquin, Laurent

PY - 2014/1/1

Y1 - 2014/1/1

N2 - The present article deals with the flow separation detection over a plain flap at a Reynolds number of 2{dot operator}106 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.

AB - The present article deals with the flow separation detection over a plain flap at a Reynolds number of 2{dot operator}106 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.

KW - Flap

KW - Flow control

KW - Flow separation

KW - Steady blowing

U2 - 10.1016/j.crme.2014.01.013

DO - 10.1016/j.crme.2014.01.013

M3 - Short survey

AN - SCOPUS:84903774859

SN - 1631-0721

VL - 342

SP - 389

EP - 402

JO - Comptes Rendus - Mecanique

JF - Comptes Rendus - Mecanique

IS - 6-7

ER -

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

Abstract

Keywords

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