01whole.pdf (11.74 MB)
Download file

Aerodynamic interaction of a front and rear wheelhouse for a generic vehicle

Download (11.74 MB)
thesis
posted on 28.03.2022, 14:12 authored by Radoje Radovic
Wheels produce key flow structures that contribute up to 30% of a vehicle's drag, limiting range and increasing emissions. The jetting vortices produced by the front wheels have been demonstrated to contribute greatly to the drag of a vehicle. Studies concerning wheels within a wheelhouse have often neglected the impact of the rear wheel and how the flow structures from the front wheel influence those generated at the rear. A numerical investigation was undertaken that utilised a modified Fabijanic body that included rear wheels. Variations in wheel spacing, front and rear overhang were evaluated that demonstrated these were critical geometric parameters that could vary the total vehicle lift and drag in excess of 100% and 15% respectively. Rear wheelhouse vortices displayed distinctive changes to those produced at the front wheel and were sensitive to wheel spacing. These changes were driven by the outboard jetting and inner wheelhouse out flow vortices which would suppress vortex formations at the rear wheel, manipulating the flow field and resulting in a signicant change in overall drag force. Variations in wheel spacing and front overhang have demonstrated the signicant impact of the front wheel flow structures on the rear wheel flow field and can be manipulated to reduce vehicle drag.

History

Table of Contents

1 Introduction -- 2 Literature Review -- 3 Methodology -- 4 Results and Discussions -- 5 Conclusion.

Notes

Theoretical thesis. Bibliography: pages 51-55

Awarding Institution

Macquarie University

Degree Type

Thesis MRes

Degree

MRes, Macquarie University, Faculty of Science and Engineering, School of Engineering

Department, Centre or School

School of Engineering

Year of Award

2020

Principal Supervisor

Sammy Diasinos

Rights

Copyright Radoje Radovic 2020 Copyright disclaimer: http://mq.edu.au/library/copyright

Language

English

Extent

1 online resource (xi, 51 pages) illustrations

Former Identifiers

mq:72033 http://hdl.handle.net/1959.14/1280733

Usage metrics

Exports