Closed-loop separation control: An analytic approach

被引:14
作者
Alam, MR [1 ]
Liu, W [1 ]
Haller, G [1 ]
机构
[1] MIT, Dept Mech Engn, Cambridge, MA 02139 USA
基金
美国国家科学基金会;
关键词
D O I
10.1063/1.2188267
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
We develop an analytic approach to two-dimensional flow separation control by feedback. With two wall-based actuators enclosing an array of distributed wall-shear sensors, we control the wall-shear evolution equation through its boundary values at the actuators. Using this approach, we induce separation at prescribed locations in steady and unsteady channel flows, and reduce the recirculation length behind a backward-facing step to a prescribed value. (C) 2006 American Institute of Physics.
引用
收藏
页数:13
相关论文
共 25 条
[1]  
Allan B.G., 2000, 200032 ICASE
[2]   Separation control in duct flows [J].
Amitay, M ;
Pitt, D ;
Glezer, A .
JOURNAL OF AIRCRAFT, 2002, 39 (04) :616-620
[3]  
[Anonymous], 2003, 20034262 AIAA
[4]   Skin friction and pressure: the "footprints" of turbulence [J].
Bewley, TR ;
Protas, B .
PHYSICA D-NONLINEAR PHENOMENA, 2004, 196 (1-2) :28-44
[5]   Backward-facing step flows for various expansion ratios at low and moderate Reynolds numbers [J].
Biswas, G ;
Breuer, M ;
Durst, F .
JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 2004, 126 (03) :362-374
[6]   Instantaneous control of backward-facing step flows [J].
Choi, H ;
Hinze, M ;
Kunisch, K .
APPLIED NUMERICAL MATHEMATICS, 1999, 31 (02) :133-158
[7]  
COLLER BD, 2000, 20002562 AIAA
[8]  
FEAKINS SH, 2003, 20034161 AIAA
[9]  
FOURGUETTE D, 2003, 20030742 AIAA
[10]   The control of flow separation by periodic excitation [J].
Greenblatt, D ;
Wygnanski, IJ .
PROGRESS IN AEROSPACE SCIENCES, 2000, 36 (07) :487-545