Investigation of Possible Merit of Gurney Flap as Wake Vortex-Attenuation Device

2005 ◽  
Author(s):  
Vojin Nikolic
Keyword(s):  
Wake Vortex ◽  
Gurney Flap

Effect of Full-Span Gurney Flap Height on Wing Wake Vortex Alleviation

2006 ◽  
Vol 43 (5) ◽  
pp. 1555-1558 ◽  
Author(s):  
Vojin R. Nikolic
Keyword(s):  
Wake Vortex ◽  
Gurney Flap

Effect of Gurney Flap on Unsteady Wake Vortex

2007 ◽  
Vol 44 (4) ◽  
pp. 1398-1402 ◽  
Author(s):  
T. Lee ◽  
L. Lee
Keyword(s):  
Wake Vortex ◽  
Gurney Flap ◽  
Unsteady Wake

Wake Vortex Field of an Airfoil Equipped with an Active Finite Gurney Flap

2015 ◽  
Author(s):  
Alena B. Bach ◽  
Georgios Pechlivanoglou ◽  
C. Nayeri ◽  
Christian O. Paschereit
Keyword(s):  
Wake Vortex ◽  
Gurney Flap ◽  
Vortex Field

THE IDENTIFICATION OF AN UNSTABLE WAKE VORTEX

2009 ◽  
Vol 16 (2) ◽  
pp. 103-125 ◽  
Author(s):  
Robert C. Nelson ◽  
Brian M. Babie
Keyword(s):  
Wake Vortex

Numerical study of wake vortex decay and descent in homogeneous atmospheric turbulence

AIAA Journal ◽  
2000 ◽  
Vol 38 ◽  
pp. 643-656 ◽  
Author(s):  
Jongil Han ◽  
Yuh-Lang Lin ◽  
S. P. Arya ◽  
Fred H. Proctor
Keyword(s):  
Atmospheric Turbulence ◽  
Numerical Study ◽  
Wake Vortex

Gurney flap scaling for optimum lift-to-drag ratio

AIAA Journal ◽  
1997 ◽  
Vol 35 ◽  
pp. 1888-1890 ◽  
Author(s):  
Philippe Giguere ◽  
Guy Dumas ◽  
Jean Lemay
Keyword(s):  
Gurney Flap ◽  
Drag Ratio ◽  
Lift To Drag Ratio

Study on the influence of linear and nonlinear distribution of crosswind on the motion of aircraft wake vortex

2021 ◽  
pp. 095441002098743
Author(s):  
Dong Li ◽  
Ziming Xu ◽  
Ke Zhang ◽  
Zeyu Zhang ◽  
Jinxin Zhou ◽  
...  
Keyword(s):  
Numerical Simulations ◽  
Dissipation Rate ◽  
Vortex Pair ◽  
Vertical Shear ◽  
Wake Vortex ◽  
Analysis Method ◽  
Velocity Magnitude ◽  
Aircraft Wake ◽  
Linear And Nonlinear ◽  
Nonlinear Distribution

Environmental crosswind can greatly affect the development of aircraft wake vortex pair. Previous numerical simulations and experiments have shown that the nonlinear vertical shear of the crosswind velocity can affect the dissipation rate of the aircraft wake vortex, causing each vortex of the vortex pair descent with different velocity magnitude, which will lead to the asymmetrical settlement and tilt of the wake vortex pair. Through numerical simulations, this article finds that uniform crosswind convection and linear vertical shear crosswind convection can also have an effect on the strength of the vortex. This effect is inversely proportional to the cube of the vortex spacing, so it is more intense on small separation vortex pair. In addition, the superposition of crosswind and vortex-induced velocities will lead to the asymmetrical pressure distribution around the vortex pair, which will also cause the tilt of the vortex pair. Furthermore, a new analysis method for wake vortex is proposed, which can be used to predict the vortex trajectory.

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