Based on the 'Lifting surface theory' in automotive aerodynamics, a new theoretical model for predicting or determining the aerodynamic characteristics of an automobile is presented. Applicational potentialities of the new model in optimization of vehicle body design are also discussed, including those in the study and development of the ideal basic body shapes, which have minimum drag coefficient when moving in the vicinity of the ground and satisfy all the requirements from automobile engineering and other aspects. A new theoretical model was developed which is applicable to automobiles moving in proximity to the ground, and capable of predicting or determining their aerodynamic characteristics such as coefficients of lift, pitching moment and induced drag, etc., so as to offer a useful means for automobile's body shape optimization. Because of the complexity and diversity of body shapes and external working or boundary conditions, it is difficult to establish a general mathematical-dynamical model suitable for all kinds of on-road vehicle. Therefore, sedan cars and similar ones are considered only, which are, from the view point of aerodynamics, more liable to get good shape.
New theoretical model of automotive aerodynamics
Ein neues theoretisches Modell der Fahrzeugaerodynamik
Chinese Journal of Mechanical Engineering. English Edition ; 9 , 2 ; 100-109
1996
10 Seiten, 4 Bilder, 9 Quellen
Article (Journal)
English
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