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A study of computational methods for wake structure and base pressure prediction of a generic SUV model with fixed and rotating wheels

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journal contribution
posted on 15.12.2016, 10:00 authored by David C. Forbes, Gary PageGary Page, Martin Passmore, Adrian P. Gaylard
This study is an evaluation of computational methods in reproducing experimental data for a generic SUV geometry and an assessment on the influence of fixed and rotating wheels for this geometry. Initially, comparisons are made in wake structure and base pressures between several CFD codes and experimental data. It was shown that steady-state RANS methods are unsuitable for this geometry due to a large scale unsteadiness in the wake caused by separation at the sharp trailing edge and rear wheel wake interactions. URANS offered no improvements in wake prediction despite a significant increase in computational cost. DES and Lattice Boltzmann methods showed the best agreement with experimental results in both wake structure and base pressure, with LBM running in approximately a fifth of the time for DES.

Funding

The authors would like thank HPC-Midlands grant EP/K000063/1 who facilitated the CFD simulations. This work was supported by Jaguar Land Rover and the UK EPSRC grant EP/K014102/1 as part of the jointly funded Programme for Simulation Innovation.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Published in

Proc. IMechE, Part D: Journal of Automobile Engineering

Citation

PAGE, G. ... et al., 2017. A study of computational methods for wake structure and base pressure prediction of a generic SUV model with fixed and rotating wheels. Proceedings of the Institution of Mechanical Engineers. Part D, Journal of Automobile Engineering, 231 (9), pp. 1222-1238.

Publisher

SAGE (© the authors)

Version

AM (Accepted Manuscript)

Publisher statement

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

Publication date

2017

Notes

This paper was accepted for publication in the journal Proceedings of the Institution of Mechanical Engineers. Part D, Journal of Automobile Engineering and the definitive published version is available at https://doi.org/10.1177/0954407016685496.

ISSN

0954-4070

eISSN

2041-2991

Language

en