Computational analysis of a inverted double element airfoil in ground effect
Computational analysis of a inverted double element airfoil in ground effect
The situation of an inverted double-element aerofoil in ground effect was studied numerically, by solving the Reynolds averaged Navier-Stokes equations. The predictive capabilities of six turbulence models with regards to the surface pressures, wake flow field and sectional forces were quantified. The Realizable k-epsilon model was found to offer improved predictions of the surface pressures and wake flow field. A number of ride heights were investigated, covering various force regions. The surface pressures, sectional forces and wake flow field were all modelled accurately and offered improvements over previous numerical investigations. The sectional forces indicated that the main element generated the majority of the downforce, whereas the flap generated the majority of the drag. The near field and far field wake development was investigated and suggestions concerning reduction of the wake thickness were offered. The main element wake was found to greatly contribute to the overall wake thickness with the contribution increasing as the ride height decreased.
1172-1180
Mahon, Stephen
e7f67dd0-cfc7-4f08-98ab-a518c2548034
Zhang, Xin
3056a795-80f7-4bbd-9c75-ecbc93085421
2006
Mahon, Stephen
e7f67dd0-cfc7-4f08-98ab-a518c2548034
Zhang, Xin
3056a795-80f7-4bbd-9c75-ecbc93085421
Mahon, Stephen and Zhang, Xin
(2006)
Computational analysis of a inverted double element airfoil in ground effect.
Journal of Fluids Engineering, 128 (6), .
(doi:10.1115/1.2353268).
Abstract
The situation of an inverted double-element aerofoil in ground effect was studied numerically, by solving the Reynolds averaged Navier-Stokes equations. The predictive capabilities of six turbulence models with regards to the surface pressures, wake flow field and sectional forces were quantified. The Realizable k-epsilon model was found to offer improved predictions of the surface pressures and wake flow field. A number of ride heights were investigated, covering various force regions. The surface pressures, sectional forces and wake flow field were all modelled accurately and offered improvements over previous numerical investigations. The sectional forces indicated that the main element generated the majority of the downforce, whereas the flap generated the majority of the drag. The near field and far field wake development was investigated and suggestions concerning reduction of the wake thickness were offered. The main element wake was found to greatly contribute to the overall wake thickness with the contribution increasing as the ride height decreased.
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Published date: 2006
Organisations:
Aerodynamics & Flight Mechanics
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Local EPrints ID: 42974
URI: http://eprints.soton.ac.uk/id/eprint/42974
ISSN: 0098-2202
PURE UUID: 2a85926a-7231-49d3-9abe-b9177818f39e
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Date deposited: 05 Jan 2007
Last modified: 15 Mar 2024 08:51
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Author:
Stephen Mahon
Author:
Xin Zhang
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