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Numerical Experiments with a New Dynamic Mixed Subgrid-Scale Model

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Direct and Large-Eddy Simulation IX

Part of the book series: ERCOFTAC Series ((ERCO,volume 20))

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Abstract

In the present work we introduce an LES framework which does not require any commutation property between filtering and derivative operators. A consistent redefinition of the SGS tensor in the new framework introduces several differences in the classical modeling strategies, including a modified, cheaper, form of Germano dynamic procedure. This dynamic procedure is exploited trough a new form of mixed model, whose scale-similar part is derived by a Taylor series analysis of the SGS tensor. The model is implemented in a commercial unstructured finite volume solver and numerical tests are performed on the turbulent channel flow at \(\mathrm {Re}_\tau = 590\), showing the flexibility and accuracy of the proposed modeling strategy.

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Authors and Affiliations

  1. Department of Energy, Politecnico di Milano, Via Lambruschini 4, 20156, Milan, Italy

    P. Lampitella, F. Inzoli & E. Colombo

Authors
  1. P. Lampitella
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  2. F. Inzoli
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  3. E. Colombo
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Corresponding author

Correspondence to P. Lampitella .

Editor information

Editors and Affiliations

  1. Institut für Strömungsmechanik, Technische Universität Dresden, Dresden, Germany

    Jochen Fröhlich

  2. Department of Mechanical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands

    Hans Kuerten

  3. Faculty EEMCS, Multiscale Modeling and Simulation, University of Twente, Enschede, The Netherlands

    Bernard J. Geurts

  4. Dipartimento di Ingegneria Civile ed Ambientale, Università di Trieste, Trieste, Italy

    Vincenzo Armenio

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Lampitella, P., Inzoli, F., Colombo, E. (2015). Numerical Experiments with a New Dynamic Mixed Subgrid-Scale Model. In: Fröhlich, J., Kuerten, H., Geurts, B., Armenio, V. (eds) Direct and Large-Eddy Simulation IX. ERCOFTAC Series, vol 20. Springer, Cham. https://doi.org/10.1007/978-3-319-14448-1_2

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  • DOI: https://doi.org/10.1007/978-3-319-14448-1_2

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-14447-4

  • Online ISBN: 978-3-319-14448-1

  • eBook Packages: EngineeringEngineering (R0)

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