Experimental Determination of Drag Coefficient on Different Automobiles Geometry

Abstract

The undertaken research deals with an experimental determination of drag coefficient for five car models. Experiments were run within a subsonic aspiration wind tunnel, covering an air speed up to 33m/s.Drag coefficients of 0.45, 0.39, 0.53, 0.34 and 0.68 for Mercedes SEL300, Hyundai, Toyota, Pajero, and Mini-Bus models were obtained respectively. The flow field around the pre-quoted models with a qualitative description about the flow visualization for car models using a subsonic smoke wind tunnel has been accomplished.

Keywords

• aerodynamic of automobile
• drag coefficient
• strain gauge