• Desai Jay
• Imran Molvi

Nowadays the reduction of drag is becoming a very important challenge for all the trucks manufacturers as they are competing to produce powerful pickup cars with the better gas mileage in the market regulated with low fuel emissions and consumer’s need for bigger size trucks with more horse power and cargo capacity. Lower drag provides better performances such as higher top speed and better stability. It also often lower aerodynamic noise and greenhouse gas emission above all decreases in fuel consumption. The purpose of this research is to design truck cabin and trailer to reduce aerodynamic drag of the vehicle. The research approach is using computational fluid dynamics (CFD) technique. However, modern designs of pickup trucks tend to go higher and wider and thus they have higher frontal areas due to the functional, economic and aesthetic requirements. Increasing frontal area of the vehicle tend to increase the drag force acting on the vehicle which is proportional to the dimensionless drag coefficient (C_d) and the projected area of the vehicle. Consequently, to hold or even decrease the drag on a truck that has a larger frontal area, tremendous effort has to be made.

Aerodynamic drag, truck-trailer, ANSYS fluent, profile modification, CFD, wind tunnel.

"Optimization of Truck Cabin and Trailer Shape to Reduce Aerodynamic Losses ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.380-384, May 2019, Available :http://www.jetir.org/papers/JETIRCQ06071.pdf

"Optimization of Truck Cabin and Trailer Shape to Reduce Aerodynamic Losses ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp380-384, May 2019, Available at : http://www.jetir.org/papers/JETIRCQ06071.pdf