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Aeroelasticity of a generic wing in ground effect

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posted on 28.03.2022, 23:52 authored by Andre Fellipe Vilanova de Araujo Aquino
The front wing of a Formula car has a significant impact on the overall aerodynamic performance of the vehicle. Previous research proved that the wing proximity to the ground plays a crucial role in the generation of loads and flow structures. However, all previous published research disregarded the effects of wing deformation. This study investigates the aeroelastic behaviour of a downforce producing wing in ground effect by developing and comparing the static loosely-coupled and the tightly-coupled FSI methods. The static loosely-coupled method was incapable of reproducing the loads and deflection oscillations captured by the tightly-coupled FSI, but computed the time-averaged deflection and loadings with discrepancies less than 3% despite using 21 times less computational resources. Further static loosely-coupled FSI simulations were undertaken to analyse the lift loss phenomenon of a flexible wing at two Reynolds numbers. For the Reynolds number of 4.46×105, based on a chord length of 0.223m, the critical height shifted from ́„‌=0.080̧‘ to ́„‌=0.091̧‘, whereas it shifted from ́„‌=0.080̧‘ to ́„‌=0.101̧‘ for the Reynolds number of 6.69×105. This variation in critical height has been linked to an earlier main wing vortex break down caused by the reduced tip ground clearance due to the deflection.

History

Table of Contents

1. Introduction -- 2. Literature review -- 3. Methodology -- 4. Results -- 5. Conclusion and future work -- References -- Appendices.

Notes

Bibliography: pages 51-56 Empirical thesis.

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

2019

Principal Supervisor

Sammy Diasinos

Rights

Copyright Andre Fellipe Vilanova de Araujo Aquino 2018. Copyright disclaimer: http://mq.edu.au/library/copyright

Language

English

Extent

1 online resource (67 pages) illustrations (some colour)

Former Identifiers

mq:71257 http://hdl.handle.net/1959.14/1272446