Aerodynamics of Gurney flaps on a single-element high-lift wing
Jeffrey, David, Zhang, Xin and Hurst, David W. (2000) Aerodynamics of Gurney flaps on a single-element high-lift wing. Journal of Aircraft, 37, (2), 295-301.
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Description/Abstract
The trailing-edge region of a single-element wing fitted with Gurney flaps has been studied. Measurements include surface pressure, force, and velocity by laser Doppler anemometry (LDA). The mean-velocity vectors and streamlines suggest a twin vortex structure downstream of the Gurney flap. Spectral analysis of the LDA data indicates that the wake consists of a von Karman vortex street of alternately shed vortices, and this flow structure is confirmed by smoke visualization of the flow downstreamof the Gurney flap. The vortex shedding increases the trailing-edge suction of the aerofoil, whereas the upstream face of the device decelerates the flow at the trailing edge of the pressure surface. These two changes result in a pressure difference acting across the trailing edge, and it is this that generates the increase in circulation.
| Item Type: | Article |
|---|---|
| ISSNs: | 0021-8669 (print) |
| Related URLs: | |
| Subjects: | T Technology > TL Motor vehicles. Aeronautics. Astronautics |
| Divisions: | University Structure - Pre August 2011 > School of Engineering Sciences |
| Item ID: | 21338 |
| Date Deposited: | 15 Mar 2006 |
| Last Modified: | 01 Jun 2011 01:51 |
| Contributors: | Jeffrey, David (Author) Zhang, Xin (Author) Hurst, David W. (Author) |
| Date: | 2000 |
| Status: | Published |
| Contact Email Address: | xzhang@soton.ac.uk |
| URI: | http://eprints.soton.ac.uk/id/eprint/21338 |
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