Aerodynamic Drag Reduction of Vehicle Si Pitung G4 UNJ for Shell Eco-Marathon Asia 2015

Abstract

The aim of this research is to improve the design of vehicles si pitung G4 UNJ for the Shell Eco-marathon Asia competition, to get reduction of aerodynamic drag so that the fuel consumption can be reduced. Aerodynamic drag reduction can be found by the reduction of aerodynamic coefficient. The improvement focused on the front wheel sparkboard vehicle body. Front wheel sparkboard was modified from the parallel side to look like fish body side form to get smooth aerodynamics flow. For drawing the design, Autodesk Inventor software was used, while the aerodynamic simulation test used CFD Autodesk Flow Design Software and Solid Works Flow Software. Based on the simulation with velocity 30 km/h, test result shows for Si Pitung G4 drag coefficient Cd = 0.15 and Si Pitung G5 = 0.13. It has been found that aerodynamic drag reduction coefficient Si Pitung G5 compared to Si Pitung G4 equal to 17.77 %.


 


 


Keywords: aerodynamic drag reduction, vehicles, Shell Eco-marathon Asia, drag coefficient

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