The Determination Of Aerodynamic Drag Coefficient Of Truck and Trailer Model By Wind Tunnel Tests

Authors : Cihan Bayındırlı, Yahya Erkan Akansu, Mustafa Sahir Salman

Pages : 53-60

Doi:10.18245/ijaet.11754

View : 18 | Download : 5

Publication Date : 2016-07-01

Article Type : Other Papers

Abstract :In this study, surface pressure and drag measurements were conducted for a heavy vehicle model consisted of 1/32 scaled truck and trailer which was placed in a wind tunnel. The wind tunnel tests of truck trailer combination were carried out in the range of 117 000 - 844 000 Reynolds numbers. The pressure coefficient insert ignore into journalissuearticles values(CP); distribution and aerodynamic drag coefficient insert ignore into journalissuearticles values(CD); on truck and trailer were experimentally determined. The regions forming aerodynamic drag on the truck trailer was determined at the result of the flow visualization. The average drag coefficient insert ignore into journalissuearticles values(CD); was determined as 0.608 for truck. The drag coefficiens was obtained as 0,704 for truc trailer combination. The drag coefficient insert ignore into journalissuearticles values(CD ); increased 15.8%, when the trailer was attached to the truck.
Keywords : The aerodynamic drag coefficient, wind tunnel, aerodynamic, drag force, pressure coefficient, drag force