Citation

Nakae Y, Ikeda J, Yasuki T, Tanaka H, Yamashita T, Tsubokura M, Nakashima T. Trans. Soc. Automot. Eng. Jpn. 2013; 44(6): 1471-1476.

Copyright

(Copyright © 2013, Society of Automotive Engineers of Japan)

DOI

10.11351/jsaeronbun.44.1471

PMID

unavailable

Abstract

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

Keywords

aerodynamic performance; computational fluid dynamics; heat・fluid