ACTIVE VORTICAL FLOW CONTROL FOR ALLEVIATION OF TWIN-TAIL BUFFET OF GENERIC FIGHTER AIRCRAFT

2001 ◽  
Vol 15 (6) ◽  
pp. 769-789 ◽  
Author(s):  
E.F. SHETA ◽  
V.J. HARRAND ◽  
L.J. HUTTSELL
Keyword(s):  
Flow Control ◽  
Vortical Flow ◽  
Fighter Aircraft ◽  
Tail Buffet

Effectiveness of Flow Control for Alleviation of Twin-Tail Buffet

1998 ◽  
Author(s):  
Essam F. Sheta ◽  
Osama A. Kandil ◽  
Zhi Yang
Keyword(s):  
Flow Control ◽  
Tail Buffet

Effectiveness of flow control for alleviation of twin-tail buffet

1998 ◽  
Author(s):  
Essam Sheta ◽  
Osama Kandil ◽  
Zhi Yang
Keyword(s):  
Flow Control ◽  
Tail Buffet

Effectiveness of adaptive flow control for twin-tail buffet

2000 ◽  
Author(s):  
Osama Kandil ◽  
Zhi Yang ◽  
Ruobo You
Keyword(s):  
Flow Control ◽  
Adaptive Flow Control ◽  
Tail Buffet

Experimental and Computational Studies of Twin-Vertical-Tail Buffet

2008 ◽  
Vol 33-37 ◽  
pp. 1241-1246
Author(s):  
Qing Yang ◽  
J.J. Li ◽  
Y.N. Yang ◽  
Z.Y. Ye
Keyword(s):  
Euler Equations ◽  
Three Dimensional ◽  
Bending Moment ◽  
Leading Edge ◽  
Light Sheet ◽  
Vortical Flow ◽  
Wind Tunnel Experiments ◽  
Rigid Model ◽  
Tail Buffet ◽  
Low Speed Wind Tunnel

Characteristics and mechanism of twin-vertical-tail buffet response on airplane configuration with wing root leading edge extension (LEX) were studied by both experiment and computation. Low-speed wind tunnel experiments were carried out to measure the root bending moment and tip acceleration of vertical tail. Vortical flow patterns were visualized via laser light sheet technique. Three-dimensional computation was performed to solve the unsteady Euler equations on rigid model. The results indicate that (1) bursting of vortices emanating from LEX is the main source of twin-vertical-tail buffet; (2) the Euler equations is able to predict the general characteristics of vertical-tail buffet response reasonably.

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