- ホーム
- > 洋書
- > 英文書
- > Transportation
Full Description
This unique handbook assumes no starting knowledge of vehicle aerodynamics. It begins with simple ideas and finishes with sophisticated and effective aerodynamic modifications that work.
Three major chapters cover on-road testing techniques that give you all the information you need to decide what modifications you should make - and, after you've made them, how well they work.
Low-cost techniques allow you to visualise the patterns of airflow over your car so that you can actually see the problem areas that need improvement. Uniquely, you're also shown how to measure aerodynamic pressures, so you can determine which body surfaces are creating lift, drag and downforce. Want to work out where a wing should be placed? On-road testing to find that out is covered as well. The book also shows you how to measure downforce to see if that wing is actually working!
If you wish to reduce drag, more than ten different areas are covered. Reducing frontal area, lowering cooling system drag, optimising vehicle ride height and rake, reducing the strength of the wake, achieving clean airflow separation and optimising wheel designs - they're all covered using the latest research findings.
And if you're a performance driver, there's a major chapter devoted to reducing lift and improving stability. This chapter includes the design and development of undertrays and diffusers, wings and spoilers. The example car developed measurable downforce when fitted with an undertray and rear diffuser, something that transformed its on-road handling.
The author has been writing about the aerodynamics of road cars for more than 25 years. He is also an experienced and proficient car modifier who has performed numerous aerodynamic modifications and upgrades to his own cars. The book's technical consultant, RH Barnard, is an acknowledged world leading automotive aerodynamicist.
If you want a practical, hands-on guide that demystifies and explains car aerodynamics, and shows you how to make effective aerodynamic modifications to your car, this book is for you.
Contents
Chapter 1 - Theory
* Wake drag
* Viscous drag
* Body pressures causing drag and lift
* Interference drag
* Attached and separated flows
* Reynolds numbers
* Trailing vortices
* Undercar flows
* Drag and lift coefficients
* Yaw
* Dynamic and static pressures
Chapter 2 - Aerodynamic vehicles
* Rumpler Tropfenwagen
* Opel RAK II winged rocket car
* Tatra T87
* Porsche Type 64
* Volkswagen Transporter
* NSU Ro80
* Dodge Charger Daytona & Plymouth Roadrunner Superbird
* Holden Special Vehicles Group A Commodore
* Opel Calibra
* General Motors EV1
* General Motors Chevrolet Volt
* Volkswagen XL-1
Chapter 3 - Flow visualisation
* On-road flow testing
* Visualisation techniques
* Wool-tufting
* Smoke streams
* Eroding clay
* Dust
Chapter 4 - Pressure measurement
* Pressure measurement aims
* Measuring instruments
* Magnehelic gauges
* Pressure probes
* Measuring pressures with a Magnehelic gauge
* Step-by-step pressure measurement
* Using pressure measurement data
* Using pitot tubes to measure airspeed
Chapter 5 - Measuring drag and lift
* Measuring drag
* Required power testing
* Coast-down testing
* Fuel economy testing
* Measuring lift and downforce on the road
Chapter 6 - Reducing drag
* Reducing frontal area
* Reducing rear vison mirror drag
* Reducing cooling drag
* Ride height and rake
* Reducing the area of the wake
* Reducing the strength of the wake
* Achieving clean separation
* Reducing separation bubbles
* Undertrays
* Wheels, tyres and wheel arches
* Reducing drag - development of a new car
Chapter 7 - Reducing lift and improving stability
* Causes of lift
* Stability
* Determining the centre of pressure and centre of gravity
* Lateral forces
* Undertrays and diffusers
* Spoilers
* Wings
* Reducing trailing vortices
* Active aerodynamics
Chapter 8 - Improving flow through heat exchangers
* Pressure differentials
* Improving underbonnet intercooler airflow
* Testing a diesel intercooler
* Designing and installing an alternator cooling duct
* Turning vanes
* Bonnet (hood) vents and ducts
Chapter 9 - Engine intakes
* Benefits
* Measuring pressures
* Measuring engine intakes
* Building a new engine intake
Chapter 10 - Reducing aerodynamic noise
* Causes of aerodynamic noise
* Testing and measurement
* Decreasing noise production
* Decreasing noise transmission
* Modifications to reduce noise
