Front aerodynamic system development of formula Garuda 18 (FG18) car using computational fluid dynamic for formula SAE

Goal of this research were: (1) produced front wing aerodynamic design; (2) generated downforce coefficient which produced by the front wing; (3) generated aerodynamic efficiency level of front wing device which is used by Formula Garuda to compete in Student Formula Japan. This research is a type of research and development (Research and Development) using the 4D development model, including define, design, develop, and disseminate. The research object was front wing aerodynamic design of formula car which compete in SFJ. Software SolidWorks was used as data collection tool, with Computational Fluid Dynamic (CFD) data analysis technique. CFD result data showed as number and image based on the shape of the front wing design and angle of attack changes. Result of this research showed: (1) there were three variants of front wing design according to the FSAE Rules, namely a single element wing, multi element wing with 1 winglet, and multi element wing with 2 winglet equipped with endplates and footplates; (2) the maximum downforce coefficient was 3,29 which produced by multi element with 1 winglet of wing at AoA 160; (3) highest efficiency level of front wing was 5,19 on single element wing at AoA 90. Based on the conditions of the SFJ competition track, the front wing with a high downforce coefficient is suitable for use in formula cars.