Turbulent wake behind a single-element wing in ground effect
Turbulent wake behind a single-element wing in ground effect
A study was performed in order to investigate the flowfield characteristics of a wing in ground effect. A highly cambered single element wing, with the suction surface nearest to the ground, was used to research the effect of changing the operating height from the ground at a single incidence. The results are of direct relevance to both aeronautical and racing car applications. A Laser Doppler Anemometry
survey has been used to investigate the ground effect on the mean flow characteristics of the wake of the wing. The size of the wake was found to increase with proximity to the ground. A downward shift
of the path of the wake was also observed. Instantaneous Particle Image Velocimetry elucidates the unsteady flow features. Discrete vortex shedding was seen to occur behind the finite trailing edge of
the wing (Figure 1). As the ground height is reduced, separation occurs on the suction surface of the wing and the vortex shedding is coupled with a flapping motion of the wake in the transverse direction.
Center for Innovation, Technology and Policy Research
Zhang, X.
2a998468-40dc-4bff-b640-5c7bf74b416b
Zerihan, J.
02e8371c-ba4c-491f-b86f-36dbf5ef54ad
2000
Zhang, X.
2a998468-40dc-4bff-b640-5c7bf74b416b
Zerihan, J.
02e8371c-ba4c-491f-b86f-36dbf5ef54ad
Zhang, X. and Zerihan, J.
(2000)
Turbulent wake behind a single-element wing in ground effect.
In Proceedings of the 10th International Symposium on Applications of Laser Techniques to Fluid Mechanics.
Center for Innovation, Technology and Policy Research..
Record type:
Conference or Workshop Item
(Paper)
Abstract
A study was performed in order to investigate the flowfield characteristics of a wing in ground effect. A highly cambered single element wing, with the suction surface nearest to the ground, was used to research the effect of changing the operating height from the ground at a single incidence. The results are of direct relevance to both aeronautical and racing car applications. A Laser Doppler Anemometry
survey has been used to investigate the ground effect on the mean flow characteristics of the wake of the wing. The size of the wake was found to increase with proximity to the ground. A downward shift
of the path of the wake was also observed. Instantaneous Particle Image Velocimetry elucidates the unsteady flow features. Discrete vortex shedding was seen to occur behind the finite trailing edge of
the wing (Figure 1). As the ground height is reduced, separation occurs on the suction surface of the wing and the vortex shedding is coupled with a flapping motion of the wake in the transverse direction.
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Published date: 2000
Venue - Dates:
10th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, Portugal, 2000-07-09 - 2000-07-12
Identifiers
Local EPrints ID: 21368
URI: http://eprints.soton.ac.uk/id/eprint/21368
PURE UUID: ecfebd06-aea7-4826-92a0-8d6abbbe2394
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Date deposited: 06 Dec 2006
Last modified: 11 Dec 2021 14:31
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Contributors
Author:
X. Zhang
Author:
J. Zerihan
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