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Bovine pericardium in treating large corneal perforation secondary to alkali injury: a case report.

Indian J Ophthalmol, 2008
Khanna RK, Mokhtar E.
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Gurney flap—Lift enhancement, mechanisms and applications

Progress in Aerospace Sciences, 2008
Abstract Since its invention by a race car driver Dan Gurney in 1960s, the Gurney flap has been used to enhance the aerodynamics performance of subsonic and supercritical airfoils, high-lift devices and delta wings. In order to take stock of recent research and development of Gurney flap, we have carried out a review of the characteristics and ...
J.J. Wang, Y.C. Li, K.-S. Choi
openaire   +3 more sources

Numerical investigation into energy extraction of flapping airfoil with Gurney flaps

Energy, 2016
Abstract A new type of Gurney flap is applied for energy extraction enhancement of a flapping airfoil. Two-dimensional Navier-Stokes simulations at Re  = 10 4 are conducted to study the effect of Gurney flaps with various heights. The investigations are undertaken over a wide range of kinematic parameters (reduced frequency k , pitching amplitude
Y.H. Xie, W. Jiang, K. Lu, D. Zhang
openaire   +3 more sources

Flap Vortex Management Using Active Gurney Flaps

AIAA Journal, 2009
An experimental study was conducted to assess the applicability of limited-span Gurney flaps for altering the flap-edge vortex characteristics of a swept constant-chord half-model with a commercial aircraft airfoil and high-lift system (slat and flap).
Greenblatt, D., Vey, S., Paschereit, C. O., Meyer, R.   +3 more
openaire   +2 more sources

Gurney flap aerodynamic unsteadiness

Sports Engineering, 1999
A Gurney flap is a thin strip of material attached at the trailing edge of the upper surface of a racing car wing in order to increase the downforce of a wing of limited size. The flow around a single element racing car wing with and without a 4.7% Gurney flap has been investigated experimentally and computationally.
null Sims-Williams, null White, null Dominy   +2 more
openaire   +1 more source

Experimental Investigation of Gurney Flaps

Journal of Aircraft, 2008
The aerodynamics of a Gurney-flap-equipped airfoil has been explored by means of low-speed wind-tunnel experiments performed at a chord Reynolds number of 1:0 10. Various chordwise locations and sizes of Gurney flaps were tested. Surface-pressure distributions and the wake momentum deficit were measured and used to determine lift, pitching moment, and ...
Mark D. Maughmer, Götz Bramesfeld
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Aerofoil at low speeds with Gurney flaps

The Aeronautical Journal, 2003
This paper reviews the research on Gurney flaps and related high lift trailing edge devices. It investigates aerofoil performances at Reynolds numbers Re ≅ 105 and below, both with the clean configuration and various Gurney flap sizes. The device height is optimised, and a semi-empirical formula linking flap height to free stream speed and aerofoil ...
Brown, L, Filippone, A.
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Gurney Flaps in Transonic Flows

2003
The application of Gurney flaps to airfoils, high aspect ratio wings and delta wings in transonic flow is being investigated at the Institute of Aerodynamics and Flow Technology of DLR. The present paper gives an overview over these studies explaining the basic working principles and advantages of these trailing edge devices at transonic Mach numbers ...
Rosemann, Henning, Richter, Kai
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