sorry, we can't preview this file

...but you can still download Unsteady Aerodynamics

Unsteady Aerodynamics. (506.68 kB)

Unsteady aerodynamics of an oscillating fastback model

Download (506.68 kB)
journal contribution
posted on 02.10.2014 by Joshua Fuller, Martin Passmore
This paper investigates the surface pressures found on the sides of a Davis model under steady state conditions and during yawed oscillations at a reduced frequency which would generally be assumed to give a quasi-static response. The surface pressures are used to investigate the flow field and integrated to infer aerodynamic loads. The results show hysteresis in the oscillating model's results, most strongly in the A-pillar flows. The changes to the oscillating model's flow field reduces the intensity of the surface pressures around the rear pillars, reduce the strength and extent of the A-pillar vortex and cause the surface pressures to couple with the oscillating motion. This work shows the flows around the front of a vehicle may be more important to a vehicle's unsteady aerodynamics than is generally accepted and also leads to the conclusions that the reduced frequency parameter may not fully describe the onset unsteadiness. © 2013 SAE International.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Published in

SAE International Journal of Passenger Cars - Mechanical Systems

Volume

6

Issue

1

Pages

403 - 413

Citation

FULLER, J. and PASSMORE, M.A., 2013. Unsteady aerodynamics of an oscillating fastback model. SAE International Journal of Passenger Cars. Mechanical Systems, 6 (1), pp. 403 - 413.

Publisher

© SAE International

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2013

Notes

Copyright © 2013 SAE International. This paper is posted on this site with permission from SAE International, and is for viewing only. Further use or distribution of this paper is not permitted without permission from SAE.

ISSN

1946-3995

eISSN

1946-4002

Book series

SAE Technical Papers;2013-01-1253

Language

en

Exports

Logo branding

Keyword(s)

Exports