ASEMINAR REPORTON AERODYNAMICS OF VEHICLESubmitted in partial fulfillment of Award of the Degree ofBACHELOR OF TECHNOLOGYINMECHANICAL ENGINEERING

Rajasthan Technical University Kota

(Session-2014-15)

Submitted To: Submitted By:Mr. RAGHAV SINGH HIMANSHU NARELA Assistant Professor 11ERIME028 Deptt. Of Mech. Engineering B.Tech 8th Semester

DEPARTMENT OF MECHANICAL ENGINEERINGRAJASTHAN INSTITUTE OF ENGINEERING AND TECHNOLOGYBHANKROTA,AJMER ROAD,JAIPUR-302026

CERTIFICATE

I hereby declare that this seminar, titled AERODYNAMICS OF VEHICLE is being submitted in partial fulfillment of the requirement for the reward of B. Tech. in Mechanical Engineering with specialization in Manufacturing and Assembly in the department of Mechanical Engineering, Rajasthan Institute of Engineering & Technology, Jaipur.

Dr. VINOD SINGH YADAV Mr. RAGHAV SINGH

(Head of Department) Assistent Professor

Deptt.Of Mech. Engg. Deptt.Of Mech. Engg.

DEPARTMENT OF MECHANICAL ENGINEERIN RAJASTHAN INSTITUTE OF ENGINEERING AND TECHNOLOGYBHANKROTA,AJMER ROAD,JAIPUR-302026

Acknowledgement

First of all, I would like to thank my course coordinator Mr. Raghav Singh,(Assistant Professor, Dept. of Mechanical Engineering) for all the support, guidance and encouragement throughout the course of my study. He devoted considerable time in guiding and checking work and made valuable suggestions and correction in my draft. I would like to thank my departmental head Dr. Vinod Singh Yadav for guidance and providing the facilities and assistance to carry out my work. I would also like to thank my colleagues at Rajasthan Institute of Engineering & Technology, Jaipur for their suggestions and support at various stages. At last but not the least, I would like to thank my parents as well as my family for their constant encouragement and support.

HIMANSHU NARELA B.Tech 8th Semester Roll No.:- 11ERIME028

DEPARTMENT OF MECHANICAL ENGINEERINGRAJASTHAN INSTITUTE OF ENGINEERING AND TECHNOLOGY BHANKROTA,AJMER ROAD,JAIPUR-302026

PREFACE

To attain a very high standard on average, it is essential to impart seminar right from engineering to the specialized executive in every concern. Today due to advancement and mass production, a very high skill is required, which can only be developed by proper seminar report.SEMINAR REPORT is the most important of an engineering student. Seminar report is a way to implement theoretical knowledge to practical use, to become a successful engineer. Practical Training is the way by which we can acquire skill to work in industry.This seminar report is my own experience gained at our college RIET, I could understand the importance of experience gained by practical on the working field. Thus it is very necessary for mechanical engineering student.Development of our country depends upon the development and growth in the field of industries and technology. All industries depend upon machinery for production both in terms of quality and upon quantity for a well developed industrial base. Every country needs new and modern technique as well as experienced and qualified engineer. Such practical training plays a great role in education of an engineering student especially of mechanical engineering student.

CONTENTS

PRELIMINARY PAGE.iCERTIFICATE ................................................iiACKNOWLEDGEMENT................iiiPREFACE.....................iv

S.N. TITLE P.N.CHAPTER:011. INTRODUCTION.............................................................................................1CHAPTER:022. HISTORY & EVOLUTION OF AERODYNAMICS....4CHAPTER:033. STUDY OF AERODYNAMICS OF CARS...............................6CHAPTER:044. LIFT OR DOWNFORCE.........................................10CHAPTER:055. WINGS& SPOILERS...............12CHAPTER:066. AERODYNAMICS DEVICES .....................13

CHAPTER:077. METHODS FOR EVALUTING AERODYNAMICS ......19 7.1 .WIND TUNNELS..................................................................................................19 7.2 SOFTWARES.....20 7.3 ALIAS SURFACE AND AUTO.21CHAPTER:088. TIPS OF AERODYNAMICS DESIGN .. ..21CHAPTER:099. CONCLUSION.......25CHAPTER:1010. BIBILOGRAPHY......26

LIST OF FIGUREFIGURE NAMEPAGE NO.

Aerodynamic force on a body01

Typical use of cars energy 05

Fronted car07

Force v/s frontal area08

Turbulence09

Lift and downforce from over body flow11

Scoops13

Naca duct15

Wings16

v