Low Speed Streaks Instability of Turbulent Boundary Layer Flows with Adverse Pressure Gradient

被引：0

作者：

Laval, J. -P. ^{[1
]}

Marquillie, M. ^{[1
]}

Ehrenstein, U. ^{[2
]}

机构：

[1] Univ Lille Nord France, CNRS, UMR 8107, F-59650 Villeneuve Dascq, France

[2] Aix Marseille Univ, IRPHE UMR 6594, CNRS, F-13384 Marseille 13, France

来源：

PROGRESS IN TURBULENCE AND WIND ENERGY IV | 2012年 / 141卷

关键词：

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A Direct Numerical Simulation of turbulent flow subjected to an adverse pressure gradient (APG) was performed. As already noticed by many authors in such configurations, a second outer peak of turbulent kinetic energy is observed in the region of APG. In the present configuration, this peak is due to the production of intense vortices which are shown to be related to the instability of low speed streaks.

引用

页码：209 / 212

页数：4

共 8 条

[1] The instability and breakdown of a near-wall low-speed streak [J].

Asai, M ;

Minagawa, M ;

Nishioka, M .

JOURNAL OF FLUID MECHANICS, 2002, 455 :289-314

[2] Experiments on the stability of streamwise streaks in plane Poiseuille flow [J].

Elofsson, PA ;

Kawakami, M ;

Alfredsson, PH .

PHYSICS OF FLUIDS, 1999, 11 (04) :915-930

[3] Direct numerical simulation of a separated channel flow with a smooth profile [J].

Marquillie, M. ;

Laval, J. -P. ;

Dolganov, R. .

JOURNAL OF TURBULENCE, 2008, 9 (01) :1-23

[4] Instability of streaks in wall turbulence with adverse pressure gradient [J].

Marquillie, Matthieu ;

Ehrenstein, Uwe ;

Laval, Jean-Philippe .

JOURNAL OF FLUID MECHANICS, 2011, 681 :205-240

[5] A parallel 3D 12-subiteration thinning algorithm [J].

Palágyi, K ;

Kuba, A .

GRAPHICAL MODELS AND IMAGE PROCESSING, 1999, 61 (04) :199-221

[6] On stability of streamwise streaks and transition thresholds in plane channel flows [J].

Reddy, SC ;

Schmid, PJ ;

Baggett, JS ;

Henningson, DS .

JOURNAL OF FLUID MECHANICS, 1998, 365 :269-303

[7]

Shah S. I., 2010, PROGR WALL TURBULENC, P203

[8] On a self-sustaining process in shear flows [J].

Waleffe, F .

PHYSICS OF FLUIDS, 1997, 9 (04) :883-900

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