The Leading Edge by Goro Tamai - Table of Contents

1
Useful Relationships . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . iv List of Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii Introduction: A Short History of Streamlined Land Vehicles . . . . . . . . . . . xi 1. General Aerodynamic Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Significance of Aerodynamic Drag 1 Aerodynamic Drag Components 6 Drag Area 9 Trade-off Between Aerodynamic Drag and Vehicle Mass 18 2. Basic Fluid Mechanics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Some Fluid Fundamentals 21 The Boundary Layer 27 3. Aerodynamic Forces on Bodies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Streamlining Examples 69 Drag of Flat Plates and Bodies of Finite Thickness 73 Ground Effect 105 Aerodynamic Moments 128 Crosswind Effects 132 4. Vehicle-level Aerodynamic Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 Interference Drag 147 Drag of the Wheel System 158 Bubble Canopies 184 Nose Shape 196 Trailing-edge Thickness of the Main Body 200 Gaps and Seams 204 Effect of Surface Roughness on Skin Friction 208 Ventilation 209 5. Aerodynamic Drag of the Entire Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . 217 Construction of a Simple Aerodynamic Drag Model 217 Practical Aspects of Body Design 222 Testing and Development 222 6. Real World Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257 Successful Bodies and Their Development 257 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282 About the Author . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290 The less wetted area the lower the aerodynamic drag, see Chapter 1. C ONTENTS Seperation flow on junction and bubble canopy, see Chapter 2. The arched sail was designed to take advantage of cross- winds, see Chapter 3. One possible solution to wheel well interference drag, see Chapter 4. Yarn tuft test with a down- force, see Chapter 5. Midnight Sun IV gets a checkup during Sunrayce 97, see Chapter 6. T HE L EADING E DGE Aerodynamic Design of Ultra-streamlined Land Vehicles

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Transcript of The Leading Edge by Goro Tamai - Table of Contents

Page 1: The Leading Edge by Goro Tamai - Table of Contents

Useful Relationships . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . iv

List of Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Introduction: A Short History of Streamlined Land Vehicles . . . . . . . . . . . xi

1. General Aerodynamic Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Significance of Aerodynamic Drag 1Aerodynamic Drag Components 6Drag Area 9Trade-off Between Aerodynamic Drag and Vehicle Mass 18

2. Basic Fluid Mechanics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Some Fluid Fundamentals 21The Boundary Layer 27

3. Aerodynamic Forces on Bodies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69Streamlining Examples 69Drag of Flat Plates and Bodies of Finite Thickness 73Ground Effect 105Aerodynamic Moments 128Crosswind Effects 132

4. Vehicle-level Aerodynamic Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147Interference Drag 147Drag of the Wheel System 158Bubble Canopies 184Nose Shape 196Trailing-edge Thickness of the Main Body 200Gaps and Seams 204Effect of Surface Roughness on Skin Friction 208Ventilation 209

5. Aerodynamic Drag of the Entire Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . 217Construction of a Simple Aerodynamic Drag Model 217Practical Aspects of Body Design 222Testing and Development 222

6. Real World Examples. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257Successful Bodies and Their Development 257

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282

About the Author . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290

The less wetted area the lower the aerodynamic drag, see Chapter 1.

CONTENTS

Seperation flow on junction and bubble canopy, see Chapter 2.

The arched sail was designed to take advantage of cross-winds, see Chapter 3.

One possible solution to wheel well interference drag, see Chapter 4.

Yarn tuft test with a down-force, see Chapter 5.

Midnight Sun IV gets a checkup during Sunrayce 97, see Chapter 6.

THE LEADING EDGEA e r o d y n a m i c De s i g n o f U l t r a - s t r ea m l i n e d L a n d Ve h i c l e s