Aspects of wake vortex control through base blowing/suction

被引：49

作者：

Arcas, DR ^{[1
]}

Redekopp, LG ^{[1
]}

机构：

[1] Univ So Calif, Dept Aerosp & Mech Engn, Los Angeles, CA 90089 USA

来源：

PHYSICS OF FLUIDS | 2004年 / 16卷 / 02期

关键词：

D O I：

10.1063/1.1637354

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Numerical simulations are used to explore the effect of blowing/suction on the characteristics of vortex shedding from a plane forebody with a rectangular base. The distribution of blowing/suction is varied to assess its role in either enhancing or suppressing the strength of shed vortices in the wake. It is shown that the amplitude of vortices in the near wake, and the required fluxes to suppress vortex shedding, scale differently depending on whether the control is exercised with blowing or with suction. These differences are rationalized in terms of local instability properties of mean velocity profiles in the near wake. (C) 2004 American Institute of Physics.

引用

页码：452 / 456

页数：5

共 15 条

[11] THE ABSOLUTE AND CONVECTIVE NATURE OF INSTABILITY IN TWO-DIMENSIONAL WAKES AT LOW REYNOLDS-NUMBERS [J].

MONKEWITZ, PA .

PHYSICS OF FLUIDS, 1988, 31 (05) :999-1006

[12] Nonlinear self-sustained structures and fronts in spatially developing wake flows [J].

Pier, B ;

Huerre, P .

JOURNAL OF FLUID MECHANICS, 2001, 435 :145-174

[13] Steep nonlinear global modes in spatially developing media [J].

Pier, B ;

Huerre, P ;

Chomaz, JM ;

Couairon, A .

PHYSICS OF FLUIDS, 1998, 10 (10) :2433-2435

[14] Bifurcation to fully nonlinear synchronized structures in slowly varying media [J].

Pier, B ;

Huerre, P ;

Chomaz, JM .

PHYSICA D, 2001, 148 (1-2) :49-96

[15] LINEAR INSTABILITY CHARACTERISTICS OF WAKE-SHEAR LAYERS [J].

WALLACE, D ;

REDEKOPP, LG .

PHYSICS OF FLUIDS A-FLUID DYNAMICS, 1992, 4 (01) :189-191

← 1 2 →