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Flow Over a Realistic Car Model: WMLES Assessment and Turbulent Structures

  • D. E. Aljure
  • J. Calafell
  • A. Báez
  • A. OlivaEmail author
Conference paper
Part of the ERCOFTAC Series book series (ERCO, volume 25)

Abstract

Most CFD research on automotive external aerodynamics has been carried out using very simplified models such as the Ahmed car (Aljure, Lehmkuhl, Rodríguez, Oliva, Comput Fluids, 96:122–135, (2014), [1]). To reduce the gap between the production cars and models used for academic purposes, the DrivAer car model was introduced in 2012. References (Heft, Indinger, Adams, SAE Tech Pap, No. 2012-01-0168, (2012), [2], Strangfeld, Wieser, Schmidt, Woszidlo, Nateri, Paschereit, SAE Tech Pap, No. 2013-01-1251, (2013), [3]) performed experimental observations on this geometry. Their results suggested that the Reynolds number dependency of the force coefficients decreased as Re increased. Two values have been reported for Re number independence, \(Re=2\times 10^6\) (Strangfeld, Wieser, Schmidt, Woszidlo, Nateri, Paschereit, SAE Tech Pap, No. 2013-01-1251, (2013), [3]) and \(Re=4.87\times 10^6\) (Heft, Indinger, Adams, SAE Tech Pap, No. 2012-01-0168, (2012), [2]).

Notes

Acknowledgements

This work has been partially financially supported by the “Ministerio de Economía y Competitividad, Secretaría de Estado de Investigación, Desarrollo e Innovación”, Spain (Project reference ENE2010-17801), by the collaboration project between “Universitat Politècnica de Catalunya” and Termo Fluids S. L. and the “Departamento Administrativo de Ciencia, Tecnología e Innovación - Colciencias” through their doctoral training program “Francisco Jose de Caldas”. We also acknowledge the access to the FinisTerrae II supercomputer granted by the “Red Espaola de Supercomputación” (RES).

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • D. E. Aljure
    • 1
  • J. Calafell
    • 1
  • A. Báez
    • 1
  • A. Oliva
    • 1
    Email author
  1. 1.Heat and Mass Transfer Technological Center (CTTC)Universitat Politècnica de Catalunya-BarcelonaTech (UPC). ESEIAAT, Colom 11Terrassa, BarcelonaSpain

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