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Aerodynamic Characteristics of a Road Vehicle in Steady-State Cornering

[+] Author Affiliations
Takuji Nakashima, Ryosuke Kono, Yasuaki Doi

Hiroshima University, Higashi-hiroshima, Japan

Makoto Tsubokura

Hokkaido University, Sapporo, Japan

Yoshihiro Okada, Takahide Nouzawa

Mazda Motor Corporation, Aki-gun, Japan

Paper No. AJKFluids2015-17553, pp. V01AT17A002; 7 pages
doi:10.1115/AJKFluids2015-17553
From:
  • ASME/JSME/KSME 2015 Joint Fluids Engineering Conference
  • Volume 1A: Symposia, Part 2
  • Seoul, South Korea, July 26–31, 2015
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-5721-3
  • Copyright © 2015 by JSME

abstract

The objective of this study was to investigate the aerodynamics of a road vehicle during cornering. We focused on steady-state cornering and divided the vehicle motion into two components, a yaw rotation and a sideslip motion. The fluid-dynamic characteristics of the vehicle in steady-state cornering and the effects of the two motion components were investigated both by a towing tank experiment and by numerical simulation. The results indicate that both of the motion components generated fluid-dynamic centripetal force and fluid-dynamic yaw moments in opposite directions. The distributions of pressure change on the vehicle body, generated by the motion components, were numerically visualized. The physical mechanisms that generated these aerodynamic characteristics are discussed.

Copyright © 2015 by JSME

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