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  • Summary & Details

Wind Tunnel Evaluation of Combined Active Aerodynamic Systems on a CUV-Type EV

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Author(J)1) Dong Ha Kim, 2) Hak Lim Kim, 3) Hong Hee Lee, 4) Jin Young Youn, 5) Su Bok Kim, 6) Suk Bom Son, 7) Woo Jae Kwon, 8) Ju Wan Han, 9) Woo Yul Baek
Author(E)1) Dong Ha Kim, 2) Hak Lim Kim, 3) Hong Hee Lee, 4) Jin Young Youn, 5) Su Bok Kim, 6) Suk Bom Son, 7) Woo Jae Kwon, 8) Ju Wan Han, 9) Woo Yul Baek
Affiliation(J)1) Hyundai Motor, 2) Hyundai Motor, 3) Hyundai Motor, 4) Hyundai Motor, 5) Hyundai Motor, 6) Hyundai Motor, 7) Hyundai Motor, 8) Hyundai Motor, 9) Hyundai Motor
Affiliation(E)1) Hyundai Motor, 2) Hyundai Motor, 3) Hyundai Motor, 4) Hyundai Motor, 5) Hyundai Motor, 6) Hyundai Motor, 7) Hyundai Motor, 8) Hyundai Motor, 9) Hyundai Motor
Abstract(E)This study investigates the combined aerodynamic effects of three active systems Active Air Skirt, Active Rear Diffuser, and Active Spoiler Module on a CUV-type EV through wind tunnel testing. Results confirm a total drag coefficient improvement of delta Cd 0.023 versus baseline, with negligible interaction between systems, enabling linear superposition for aerodynamic performance prediction. These findings serve as fundamental data for the development of effective combination and control strategies for EV active aerodynamic systems, ultimately contributing to improved energy efficiency in next-generation EVs.

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