The aerodynamic development of a convertible passenger car requires the optimization of additional characteristics, when compared to those which are considered for normal passenger cars.To be more specific, this means that, in addition to the usual requirements of hard-top passenger cars, (i.e. low values of the aerodynamic coefficients Cd, Cl, Cmy, etc., optimization of the cooling flow and achievement of low aerodynamic noise), it is important to also check the following: To achieve this,in some cases,it has been necessary to set up new instrumentation for these measurements, i.e., such as for measurement of soft-top ballooning.In other cases, the standard techniques (flow mapping with the 14-hole probe, acoustic dummies, etc.) are used, although in a different way than for the development of normal passenger cars.This paper describes these techniques and the way they are employed for the aerodynamic development of convertible cars.
Experimental Techniques for the Aerodynamic Development of Convertible Cars
Sae Technical Papers
International Congress & Exposition ; 1992
1992-02-01
Conference paper
English
Experimental techniques for the aerodynamic development of convertible cars
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