Formula 1 Cfd Study

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  • Topic: Airfoil, Formula One, Wing design
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CRANFIELD UNIVERSITY

F MORTEL

CRANFIELD TEAM F1:
THE FRONT WING

SCHOOL OF ENGINEERING
CRANFIELD COLLEGE OF AERONAUTICS

MSc THESIS

CRANFIELD UNIVERSITY

SCHOOL OF ENGINEERING
CRANFIELD COLLEGE OF AERONAUTICS

MSc THESIS

Academic Year 2002-2003

F MORTEL
Cranfield Team F1: The front wing

Supervisor: P A RUBINI
September 2003

This thesis is submitted in partial fulfilment of the requirements for the degree of Master of Science

© Cranfield University 2003. All rights reserved. No part of this publication may be reproduced without the written permission of the copyright owner.

ABSTRACT
Cranfield Formula 1 Team is a group design project composed of five students, each of them being responsible for the design of one part of the vehicle. The present thesis deals with the front wing design.

According to the time allowed to do the thesis and to learn the relevant software to use, three models were built: one is quite simple and is the basis of the two others. The aim was to design these three models using CAD (Catia V5, a product from Dassault Systems), to build their meshes using Gridgen (a product from Pointwise), to simulate the flow with Fluent 6.1 and finally to visualise it thanks to Fieldview 9.

The main aims of the different models are to deflect the flow from the wheels to reduce the drag created by the tyres and to create enough downforce taking care to match the FIA Formula 1 technical regulation. The design focuses on the endplates to fulfil these objectives.

Having done the CFD parts, the flow pattern was studied and the efficiencies of the different devices designed were assessed. It appears that the behaviour of the flow was greatly influenced by the front wheels (which were simulated with the front wing) as expected and therefore that the design has to take account of the environment of the front wing. The endplates demonstrate their utilities as deflectors that are able to suck the flow inboard the wheels. They also show that they can be additional downforce productive devices. The loads created there are not huge but are honest compared to the surface used and to the fact the design tested has been made without optimisation.

Finally, from the results of the simulation and the flow pattern obtained, many ideas come out to improve the efficiency of the front wing.

Florent MORTEL

iii

Cranfield Team F1: The Front Wing

ACKNOWLEDGEMENTS
Dr Philip RUBINI
for his CFD advices
Jean-Marie “James” CAVET
for teaching me Gridgen
All my friends from Cranfield University for being who they are: Audrey, Carine, Caro, Fabie (our fairy), Sophie, Véro,
Charlie, Florent (the tall but smaller one), James, Jérôme, Markus, Nico, Pierre (for the breaks…), Robin, Seb and Steph.

Florent MORTEL

iv

Cranfield Team F1: The Front Wing

LIST OF CONTENTS
INTRODUCTION ......................................................................................1 I. LITERATURE REVIEW ............................................................................2 1. THE FRONT WING ..............................................................................2 2. AIMS AND OBJECTIVES ......................................................................2 3. OVERVIEW OF THE PAST FRONT WING DEVICES ....................................4 4. DESCRIPTION OF THE FLOW AROUND THE FRONT WING ....................... 10 4.1 Flow over the wing span .............................................................. 10 4.2 Flow at the tips........................................................................... 11 5. MATCHING THE 2003 FIA FORMULA ONE TECHNICAL REGULATION ......... 12 CONCLUSION ..................................................................................... 14 II. MODELS CREATION ........................................................................... 15 1. THE DESIGN ................................................................................... 15 1.1 The basic...
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