EXPERIMENTAL SURVEY OF THE EFFECT OF SPOILER HEIGHT AND DIFFUSER ON AERODYNAMIC COEFFICIENTS OF A GENERIC CAR
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Abstract
In recent years, aerodynamic analysis of automobiles has became one of the most important issue which affect the competition of the companies present in the world markets. Therefore it can be considered as one of the most important factor in aerodynamic design of the vehicles. This paper investigates the effect of aerodynamic devices on how to reduce the aerodynamic forces in the rear of a car model. The study was conducted experimentally at speeds of 0 to 60 m/s and a constant speed of 60 m/s. In these experiments aerodynamic forces, lift and drag coefficients were measured and the effect of the spoiler with three different heights along with diffuser were compared. The most important result of these experiments was the effective reduction of lift and drag coefficients with the presence of a spoiler and diffuser on the model
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