TY - JOUR PY - 2013// TI - A study of unsteady aerodynamic forces acting on car in dynamic motion JO - Transactions of Society of Automotive Engineers of Japan A1 - Nakae, Yusuke A1 - Ikeda, Jun A1 - Yasuki, Tsuyoshi A1 - Tanaka, Hiroshi A1 - Yamashita, Taro A1 - Tsubokura, Makoto A1 - Nakashima, Takuji SP - 1471 EP - 1476 VL - 44 IS - 6 N2 - This paper describes the numerical analysis of unsteady aerodynamics of a car in dynamic motions to clarify the effect of adding aerodynamic parts on the unsteady aerodynamic response of a car. Large-Eddy simulations with moving boundary method were carried out. In this study, forced pitching oscillation or lane-change maneuvering was imposed on a simplified shape model of car with or without the aerodynamic parts, and unsteady aerodynamic forces and moments acting on the car model were investigated. As a result, the aerodynamic parts contribute to enhance the aerodynamic pitch and roll damping by rectifying the wake of front wheel.

Language: ja

LA - ja SN - 0287-8321 UR - http://dx.doi.org/10.11351/jsaeronbun.44.1471 ID - ref1 ER -