Unsteady aerodynamics of slat cove flow in a high-lift device configuration
Unsteady aerodynamics of slat cove flow in a high-lift device configuration
The unsteady flow around the leading edge slat of a three-element high lift aerofoil configuration has been experimentally investigated using Particle Image Velocimetry (PIV) and Laser Doppler Anenometry (LDA). The two-dimensional UK National High Lift Programme model was tested in the University of Southampton 3.5m × 2.5m R. J. Mitchell and 2.1m × 1.7m wind tunnels. Instantaneous PIV results and LDA turbulence statistics reveal the unsteady nature of the slat cove flow, and its cavity-like characteristics. The presence of large, spanwise rollers within the shear layer emanating from the slat cove lip has been shown. The slat trailing edge wake resembles a mixing layer with no vortex pairing in the region up to one slat chord downstream. Increasing angle of attack has the effect of stabilising the flow around the slat and significantly reducing the turbulent kinetic energy and normal Reynolds stress within the cove.
Takeda, K.
e699e097-4ba9-42bd-8298-a2199e71d061
Ashcroft, G. B.
c2491f3b-7aa6-41b8-9b71-ff254e1d2f2e
Zhang, X.
3056a795-80f7-4bbd-9c75-ecbc93085421
Nelson, P. A.
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11 January 2001
Takeda, K.
e699e097-4ba9-42bd-8298-a2199e71d061
Ashcroft, G. B.
c2491f3b-7aa6-41b8-9b71-ff254e1d2f2e
Zhang, X.
3056a795-80f7-4bbd-9c75-ecbc93085421
Nelson, P. A.
5c6f5cc9-ea52-4fe2-9edf-05d696b0c1a9
Takeda, K., Ashcroft, G. B., Zhang, X. and Nelson, P. A.
(2001)
Unsteady aerodynamics of slat cove flow in a high-lift device configuration.
39th Aerospace Sciences Meeting and Exhibit 2001, , Reno, NV, United States.
08 - 11 Jan 2001.
(doi:10.2514/6.2001-706).
Record type:
Conference or Workshop Item
(Paper)
Abstract
The unsteady flow around the leading edge slat of a three-element high lift aerofoil configuration has been experimentally investigated using Particle Image Velocimetry (PIV) and Laser Doppler Anenometry (LDA). The two-dimensional UK National High Lift Programme model was tested in the University of Southampton 3.5m × 2.5m R. J. Mitchell and 2.1m × 1.7m wind tunnels. Instantaneous PIV results and LDA turbulence statistics reveal the unsteady nature of the slat cove flow, and its cavity-like characteristics. The presence of large, spanwise rollers within the shear layer emanating from the slat cove lip has been shown. The slat trailing edge wake resembles a mixing layer with no vortex pairing in the region up to one slat chord downstream. Increasing angle of attack has the effect of stabilising the flow around the slat and significantly reducing the turbulent kinetic energy and normal Reynolds stress within the cove.
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Published date: 11 January 2001
Additional Information:
AIAA-2001-0706
Published online: 22 August 2012
Venue - Dates:
39th Aerospace Sciences Meeting and Exhibit 2001, , Reno, NV, United States, 2001-01-08 - 2001-01-11
Identifiers
Local EPrints ID: 468775
URI: http://eprints.soton.ac.uk/id/eprint/468775
PURE UUID: 0c886655-92ff-4427-a3f2-c225a6848f78
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Date deposited: 25 Aug 2022 17:08
Last modified: 17 Mar 2024 02:32
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Contributors
Author:
K. Takeda
Author:
G. B. Ashcroft
Author:
X. Zhang
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