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Prediction of Two- and Three-Dimensional Separated Flows with a Non-Linear k-ε Model

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Bluff-Body Wakes, Dynamics and Instabilities

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Summary

A non-linear stress-strain relationship is used instead of Boussinesq’s in conjunction with a standard k-ε model. This is found to produce vastly improved predictions for a wide variety of two- and three-dimensional separated flows which suggests that shortcomings in the performance of two- equation models have been wrongly attributed in the past to the form of the length-scale equation. Problems remain, mainly in predicting separation from a circular cylinder, and proposals for improvements are tested.

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Author information

Authors and Affiliations

  1. Department of Civil Engineering, City University, London, EC1V OHB, UK

    B. Basara & B. A. Younis

Authors
  1. B. Basara
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  2. B. A. Younis
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Editor information

Editors and Affiliations

  1. Institut für Angewandte Mechanik und Strömungsphysik, Universität Göttingen und Max-Planck-Institut für Strömungsforschung, Bunsenstraße 10, 37073, Göttingen, Germany

    Helmut Eckelmann

  2. Department of Aeronautics, Imperial College of Science, Technology and Medicine, SW72BY, South Kensington, London, UK

    J. Michael R. Graham

  3. Laboratoire d’Hydrodynamique (LADHYX), Ecole Polytechnique, 91128, Palaiseau Cedex, France

    Patrick Huerre

  4. Mechanical, Aerospace and Nuclear Engineering Dept., University of California, Los Angeles, 405 Hilgard Ave., 90024-1597, Los Angeles, CA, USA

    Peter A. Monkewitz

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© 1993 Springer-Verlag Berlin Heidelberg

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Basara, B., Younis, B.A. (1993). Prediction of Two- and Three-Dimensional Separated Flows with a Non-Linear k-ε Model. In: Eckelmann, H., Graham, J.M.R., Huerre, P., Monkewitz, P.A. (eds) Bluff-Body Wakes, Dynamics and Instabilities. International Union of Theoretical and Applied Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-00414-2_36

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  • DOI: https://doi.org/10.1007/978-3-662-00414-2_36

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-662-00416-6

  • Online ISBN: 978-3-662-00414-2

  • eBook Packages: Springer Book Archive

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