Also published in a newer version ("Competition Car Aerodynamics: A Practical Guide"). It includes aerodynamic theory, how devices work, design, and construction techniques. Get "Race Car Aerodynamics: Designing for Speed":Ĭompetition Car Downforce: A Practical Guide A comprehensive guide for understanding, designing and building aerodynamic devices for race cars.
#RACE CAR BODY DESIGN HOW TO#
Written with the non-engineer in mind, it also provides many examples and diagrams that show how to optimize the air flow around and through a race vehicle. wings, venturis, diffusers, spoilers and more) to their applications on different types of race cars. It covers everything a designer needs to know-from basic theory and aero devices (i.e. Race Car Aerodynamics: Designing for Speed An in-depth and comprehensive guide to race car aerodynamic theory and practice. The diagram is meant to plot negative pressure coefficients from the front to the rear (the Chord) of the wing (x/c) NOTE: The wing in the diagram is shown “upside down” compared to how it would be mounted on a race car. The positioning of the elements is critical, with gaps between the wing elements “feeding” the low pressure side of the smaller wings. In his book “ Race Car Aerodynamics: Designing for Speed“, Joseph Katz provides a Coefficient of pressure plot with an overlaid multi-element wing profile, shown in diagram AD6, below. Drag also increases with higher angles of attack.ĭownforce can be increased even more without stalling the wing by using multi-element wings that position one or more small wings behind a larger wing. The angle of attack or wing angle can be increased to enable even larger pressure differences, but eventually the wing will stall and lose downforce. The lower pressure area under the wing allows the higher pressure area above the wing to “push” down on the wing, and hence the vehicle it’s mounted to. The longer underside of the wing requires the air flowing on that side to move at a higher speed (lower pressure) to meet up with the air flowing at a lower speed (higher pressure) over the top side of the wing. A wing does this by making the air molecules travel different distances from the leading edge to the trailing edge.
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