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CFD Analysis of the Location of a Rear Wing on an Aston Martin DB7 in Order to Optimize Aerodynamics for Motorsports

THOMAS O'DRISCOLL, Andrew Barron Orcid Logo

Vehicles, Volume: 4, Issue: 2, Pages: 608 - 620

Swansea University Authors: THOMAS O'DRISCOLL, Andrew Barron Orcid Logo

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DOI (Published version): 10.3390/vehicles4020035

Abstract

The purpose of this study is to identify the initial lateral and vertical location and angle of attack of a GT4-style rear wing on the rear downforce for an Aston Martin DB7 Vantage, prior to installation. The tests were completed with a two-dimensional model, using the Computational Fluid Dynamics...

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Published in: Vehicles
ISSN: 2624-8921
Published: MDPI AG 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa61226
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first_indexed 2022-09-29T14:24:35Z
last_indexed 2023-01-13T19:21:51Z
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spelling 2022-09-29T15:26:00.9504166 v2 61226 2022-09-15 CFD Analysis of the Location of a Rear Wing on an Aston Martin DB7 in Order to Optimize Aerodynamics for Motorsports ba0ba3e3c66139251f283b0b167798bc THOMAS O'DRISCOLL THOMAS O'DRISCOLL true false 92e452f20936d688d36f91c78574241d 0000-0002-2018-8288 Andrew Barron Andrew Barron true false 2022-09-15 The purpose of this study is to identify the initial lateral and vertical location and angle of attack of a GT4-style rear wing on the rear downforce for an Aston Martin DB7 Vantage, prior to installation. The tests were completed with a two-dimensional model, using the Computational Fluid Dynamics (CFD) software, Fluent Ansys. The tests were completed using a range of velocities: 60–80 mph. Optimization of the position of the rear wing aerodynamic device was permitted under the Motorsport UK rules for multiple race series. The results show that while the drag decreases the farther back the wing is located, the desired configuration for the rear wing with regard to downforce is when it is positioned ca. 1850 mm back from the center point of the car, with an attack angle of 5°. Unusually, this is to the front of the boot/rear deck, but it is remarkably similar to where Aston Martin set the rear wing on their Le Mans car in 1995, above where the rear windscreen met the boot hinge, which was based upon wind tunnel studies using a scale model. Our results suggest that while 2D simulations of these types cannot give absolute values for downforce due to aerodynamic device location, they can provide low costs, fast simulation time, and a route for a wide range of cars, making the approach accessible to club motorsports, unlike complex 3D simulation and wind tunnel experimentation. Journal Article Vehicles 4 2 608 620 MDPI AG 2624-8921 aerodynamic; race car; wing; CFD; Aston Martin; lift; drag 13 6 2022 2022-06-13 10.3390/vehicles4020035 COLLEGE NANME COLLEGE CODE Swansea University This research received no external funding. 2022-09-29T15:26:00.9504166 2022-09-15T08:55:29.3172578 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised THOMAS O'DRISCOLL 1 Andrew Barron 0000-0002-2018-8288 2 61226__25263__ebe064e248d14166a3724417df3c2c67.pdf 61226_VoR.pdf 2022-09-29T15:25:02.2810987 Output 4159605 application/pdf Version of Record true © 2022 by the authors.This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license true eng https://creativecommons.org/licenses/by/4.0/
title CFD Analysis of the Location of a Rear Wing on an Aston Martin DB7 in Order to Optimize Aerodynamics for Motorsports
spellingShingle CFD Analysis of the Location of a Rear Wing on an Aston Martin DB7 in Order to Optimize Aerodynamics for Motorsports
THOMAS O'DRISCOLL
Andrew Barron
title_short CFD Analysis of the Location of a Rear Wing on an Aston Martin DB7 in Order to Optimize Aerodynamics for Motorsports
title_full CFD Analysis of the Location of a Rear Wing on an Aston Martin DB7 in Order to Optimize Aerodynamics for Motorsports
title_fullStr CFD Analysis of the Location of a Rear Wing on an Aston Martin DB7 in Order to Optimize Aerodynamics for Motorsports
title_full_unstemmed CFD Analysis of the Location of a Rear Wing on an Aston Martin DB7 in Order to Optimize Aerodynamics for Motorsports
title_sort CFD Analysis of the Location of a Rear Wing on an Aston Martin DB7 in Order to Optimize Aerodynamics for Motorsports
author_id_str_mv ba0ba3e3c66139251f283b0b167798bc
92e452f20936d688d36f91c78574241d
author_id_fullname_str_mv ba0ba3e3c66139251f283b0b167798bc_***_THOMAS O'DRISCOLL
92e452f20936d688d36f91c78574241d_***_Andrew Barron
author THOMAS O'DRISCOLL
Andrew Barron
author2 THOMAS O'DRISCOLL
Andrew Barron
format Journal article
container_title Vehicles
container_volume 4
container_issue 2
container_start_page 608
publishDate 2022
institution Swansea University
issn 2624-8921
doi_str_mv 10.3390/vehicles4020035
publisher MDPI AG
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description The purpose of this study is to identify the initial lateral and vertical location and angle of attack of a GT4-style rear wing on the rear downforce for an Aston Martin DB7 Vantage, prior to installation. The tests were completed with a two-dimensional model, using the Computational Fluid Dynamics (CFD) software, Fluent Ansys. The tests were completed using a range of velocities: 60–80 mph. Optimization of the position of the rear wing aerodynamic device was permitted under the Motorsport UK rules for multiple race series. The results show that while the drag decreases the farther back the wing is located, the desired configuration for the rear wing with regard to downforce is when it is positioned ca. 1850 mm back from the center point of the car, with an attack angle of 5°. Unusually, this is to the front of the boot/rear deck, but it is remarkably similar to where Aston Martin set the rear wing on their Le Mans car in 1995, above where the rear windscreen met the boot hinge, which was based upon wind tunnel studies using a scale model. Our results suggest that while 2D simulations of these types cannot give absolute values for downforce due to aerodynamic device location, they can provide low costs, fast simulation time, and a route for a wide range of cars, making the approach accessible to club motorsports, unlike complex 3D simulation and wind tunnel experimentation.
published_date 2022-06-13T04:19:54Z
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score 11.035634

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