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Effects of heaving motion on the aerodynamic performance of a double element wing in ground effect

Effects of heaving motion on the aerodynamic performance of a double element wing in ground effect
Effects of heaving motion on the aerodynamic performance of a double element wing in ground effect
The broad implication of the present study is to elucidate the significance of the dynamic heaving motion in the aerodynamic performance of a double-element wing, which is currently considered a promising aspect of research for the improvement of the aerodynamic correlation between CFD, wind tunnel and track testing in race car applications. The relationship between the varying aerodynamic forces, the vortex shedding, and the unsteady pressure field around a heaving double-element wing is investigated numerically for a range of mean ride heights, frequencies and amplitudes. The analysis of the results shows that at high frequencies the interaction of the shear vorticity between the two elements of the wing results in the generation of cohering leading edge and trailing edge vortices on the flap, which are associated to the rapid variation of thrust and the enhancement of downforce. Importantly, both the occurrence and magnitude of these vortices are dependent upon the frequency, amplitude, and mean ride height. The addition of the flap significantly alters the frequency of the shed vortices in the wake, while the generation of downforce lasts longer in ground proximity. The comparison with the results of a static wing provides evidence that this dynamic motion of a race car wing can be beneficial in terms of performance, or detrimental in terms of aerodynamic correlation.
CFD, aerodynamics, heaving wing, multi-element wing, vortex shedding, ground effect, downforce, overset mesh, race car
1555-256X
1093-1114
Oxyzoglou, Ioannis
23076269-972f-439b-b2f3-4011cd49dc2b
Xie, Zheng-Tong
98ced75d-5617-4c2d-b20f-7038c54f4ff0
Oxyzoglou, Ioannis
23076269-972f-439b-b2f3-4011cd49dc2b
Xie, Zheng-Tong
98ced75d-5617-4c2d-b20f-7038c54f4ff0

Oxyzoglou, Ioannis and Xie, Zheng-Tong (2020) Effects of heaving motion on the aerodynamic performance of a double element wing in ground effect. Fluid Dynamics and Material Processing, 16 (6), 1093-1114. (doi:10.32604/fdmp.2020.012237).

Record type: Article

Abstract

The broad implication of the present study is to elucidate the significance of the dynamic heaving motion in the aerodynamic performance of a double-element wing, which is currently considered a promising aspect of research for the improvement of the aerodynamic correlation between CFD, wind tunnel and track testing in race car applications. The relationship between the varying aerodynamic forces, the vortex shedding, and the unsteady pressure field around a heaving double-element wing is investigated numerically for a range of mean ride heights, frequencies and amplitudes. The analysis of the results shows that at high frequencies the interaction of the shear vorticity between the two elements of the wing results in the generation of cohering leading edge and trailing edge vortices on the flap, which are associated to the rapid variation of thrust and the enhancement of downforce. Importantly, both the occurrence and magnitude of these vortices are dependent upon the frequency, amplitude, and mean ride height. The addition of the flap significantly alters the frequency of the shed vortices in the wake, while the generation of downforce lasts longer in ground proximity. The comparison with the results of a static wing provides evidence that this dynamic motion of a race car wing can be beneficial in terms of performance, or detrimental in terms of aerodynamic correlation.

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Oxyzoglou_FDMP_Paper - Author's Original
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More information

Submitted date: 20 June 2020
Accepted/In Press date: 18 November 2020
e-pub ahead of print date: 17 December 2020
Published date: 17 December 2020
Keywords: CFD, aerodynamics, heaving wing, multi-element wing, vortex shedding, ground effect, downforce, overset mesh, race car

Identifiers

Local EPrints ID: 442295
URI: http://eprints.soton.ac.uk/id/eprint/442295
ISSN: 1555-256X
PURE UUID: 7c7cb606-e44a-4fbd-b236-bba1e04489ac
ORCID for Zheng-Tong Xie: ORCID iD orcid.org/0000-0002-8119-7532

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Date deposited: 13 Jul 2020 16:30
Last modified: 28 Apr 2022 01:53

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Contributors

Author: Ioannis Oxyzoglou
Author: Zheng-Tong Xie ORCID iD

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