EFFECTS OF EXTERNAL EXCITAION ON THE LEADING-EDGE SEPARATION FLOWFIELD

Xu Cheng; Zhang Shiying; Zhou Mingde

Volume 8 Issue 3

Jul. 1993

Turn off MathJax

Article Contents

Article Navigation > Journal of Aerospace Power > 1993 > 8(3): 271-274,310

Xu Cheng, Zhang Shiying, Zhou Mingde. EFFECTS OF EXTERNAL EXCITAION ON THE LEADING-EDGE SEPARATION FLOWFIELD[J]. Journal of Aerospace Power, 1993, 8(3): 271-274,310.

Citation:

Xu Cheng, Zhang Shiying, Zhou Mingde. EFFECTS OF EXTERNAL EXCITAION ON THE LEADING-EDGE SEPARATION FLOWFIELD[J]. Journal of Aerospace Power, 1993, 8(3): 271-274,310.

Xu Cheng, Zhang Shiying, Zhou Mingde. EFFECTS OF EXTERNAL EXCITAION ON THE LEADING-EDGE SEPARATION FLOWFIELD[J]. Journal of Aerospace Power, 1993, 8(3): 271-274,310.

Citation:

Xu Cheng, Zhang Shiying, Zhou Mingde. EFFECTS OF EXTERNAL EXCITAION ON THE LEADING-EDGE SEPARATION FLOWFIELD[J]. Journal of Aerospace Power, 1993, 8(3): 271-274,310.

PDF( 267 KB)

EFFECTS OF EXTERNAL EXCITAION ON THE LEADING-EDGE SEPARATION FLOWFIELD

1.
East China Institute of Techology
2.
Nanjing Aeronautical Institute

Received Date: 1992-08-01
Rev Recd Date: 1992-11-01
Publish Date: 1993-07-28

Abstract

Abstract

This paper presents the comparison of the leading edge separation flow without and with the excitation of select frequency.A variety of excitation effects on the separation flowfield are revealed as(1)delaying separation flow or decreasing separation flow area,(2)modifying turbulence structure,intensifying turbulent activity and enhancing growth rate of separated shear layer,(3)enhancing backflow activity of local region,(4)promoting reattachment and changing separation patterns and vortex distribution,(5)weakening turbulence fluctuation of wake flow,and(6)increasing inclination of wake flow.