A combined application of the integral wall model and the rough wall rescaling-recycling method

Xiang Yang, J. Sadique, R. Mittal, C. Meneveau

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    In this study, a recently proposed integral wall model and concurrent inflow generation technique are applied in Large-Eddy-Simulation (iWMLES) of developing turbulent boundary layer flow over cuboidal roughness. We examine the performance of this integral wall model at various Reynolds numbers. The integral wall model is based on the von-Karman-Pohlhausen integral method. With several parameters in the proposed functional form of the velocity profile determined from the local flow conditions, the wall model predicts velocity profiles that satisfy the vertically integrated momentum equation. Only an algebraic system must be solved in the wall model which thus preserves the essential economy of equilibrium type models. The rough wall inflow generation technique is proposed based on a new definition of a length scale that is appropriate for the roughness dominated inner layer. It extends the rescaling-recycling method to rough surfaces. The integral wall model and the rough wall rescaling-recycling method are applied in Large Eddy Simulations of turbulent boundary layers over surface with distributed cuboidal roughness. The effect of Reynolds number is studied. A good agreement is found between the roughness function (velocity shift) measured in iWMLES and the Colebrook formula and previous experimental measurements.

    Original languageEnglish (US)
    Title of host publication22nd AIAA Computational Fluid Dynamics Conference
    PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
    ISBN (Print)9781624103667
    StatePublished - Jan 1 2015
    Event22nd AIAA Computational Fluid Dynamics Conference, 2015 - Dallas, United States
    Duration: Jun 22 2015Jun 26 2015

    Publication series

    Name22nd AIAA Computational Fluid Dynamics Conference

    Other

    Other22nd AIAA Computational Fluid Dynamics Conference, 2015
    CountryUnited States
    CityDallas
    Period6/22/156/26/15

    Fingerprint

    Recycling
    Surface roughness
    Large eddy simulation
    Reynolds number
    Boundary layer flow
    Momentum
    Boundary layers

    All Science Journal Classification (ASJC) codes

    • Fluid Flow and Transfer Processes
    • Mechanical Engineering

    Cite this

    Yang, X., Sadique, J., Mittal, R., & Meneveau, C. (2015). A combined application of the integral wall model and the rough wall rescaling-recycling method. In 22nd AIAA Computational Fluid Dynamics Conference (22nd AIAA Computational Fluid Dynamics Conference). American Institute of Aeronautics and Astronautics Inc, AIAA.
    Yang, Xiang ; Sadique, J. ; Mittal, R. ; Meneveau, C. / A combined application of the integral wall model and the rough wall rescaling-recycling method. 22nd AIAA Computational Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, 2015. (22nd AIAA Computational Fluid Dynamics Conference).
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    title = "A combined application of the integral wall model and the rough wall rescaling-recycling method",
    abstract = "In this study, a recently proposed integral wall model and concurrent inflow generation technique are applied in Large-Eddy-Simulation (iWMLES) of developing turbulent boundary layer flow over cuboidal roughness. We examine the performance of this integral wall model at various Reynolds numbers. The integral wall model is based on the von-Karman-Pohlhausen integral method. With several parameters in the proposed functional form of the velocity profile determined from the local flow conditions, the wall model predicts velocity profiles that satisfy the vertically integrated momentum equation. Only an algebraic system must be solved in the wall model which thus preserves the essential economy of equilibrium type models. The rough wall inflow generation technique is proposed based on a new definition of a length scale that is appropriate for the roughness dominated inner layer. It extends the rescaling-recycling method to rough surfaces. The integral wall model and the rough wall rescaling-recycling method are applied in Large Eddy Simulations of turbulent boundary layers over surface with distributed cuboidal roughness. The effect of Reynolds number is studied. A good agreement is found between the roughness function (velocity shift) measured in iWMLES and the Colebrook formula and previous experimental measurements.",
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    Yang, X, Sadique, J, Mittal, R & Meneveau, C 2015, A combined application of the integral wall model and the rough wall rescaling-recycling method. in 22nd AIAA Computational Fluid Dynamics Conference. 22nd AIAA Computational Fluid Dynamics Conference, American Institute of Aeronautics and Astronautics Inc, AIAA, 22nd AIAA Computational Fluid Dynamics Conference, 2015, Dallas, United States, 6/22/15.

    A combined application of the integral wall model and the rough wall rescaling-recycling method. / Yang, Xiang; Sadique, J.; Mittal, R.; Meneveau, C.

    22nd AIAA Computational Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, 2015. (22nd AIAA Computational Fluid Dynamics Conference).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

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    N2 - In this study, a recently proposed integral wall model and concurrent inflow generation technique are applied in Large-Eddy-Simulation (iWMLES) of developing turbulent boundary layer flow over cuboidal roughness. We examine the performance of this integral wall model at various Reynolds numbers. The integral wall model is based on the von-Karman-Pohlhausen integral method. With several parameters in the proposed functional form of the velocity profile determined from the local flow conditions, the wall model predicts velocity profiles that satisfy the vertically integrated momentum equation. Only an algebraic system must be solved in the wall model which thus preserves the essential economy of equilibrium type models. The rough wall inflow generation technique is proposed based on a new definition of a length scale that is appropriate for the roughness dominated inner layer. It extends the rescaling-recycling method to rough surfaces. The integral wall model and the rough wall rescaling-recycling method are applied in Large Eddy Simulations of turbulent boundary layers over surface with distributed cuboidal roughness. The effect of Reynolds number is studied. A good agreement is found between the roughness function (velocity shift) measured in iWMLES and the Colebrook formula and previous experimental measurements.

    AB - In this study, a recently proposed integral wall model and concurrent inflow generation technique are applied in Large-Eddy-Simulation (iWMLES) of developing turbulent boundary layer flow over cuboidal roughness. We examine the performance of this integral wall model at various Reynolds numbers. The integral wall model is based on the von-Karman-Pohlhausen integral method. With several parameters in the proposed functional form of the velocity profile determined from the local flow conditions, the wall model predicts velocity profiles that satisfy the vertically integrated momentum equation. Only an algebraic system must be solved in the wall model which thus preserves the essential economy of equilibrium type models. The rough wall inflow generation technique is proposed based on a new definition of a length scale that is appropriate for the roughness dominated inner layer. It extends the rescaling-recycling method to rough surfaces. The integral wall model and the rough wall rescaling-recycling method are applied in Large Eddy Simulations of turbulent boundary layers over surface with distributed cuboidal roughness. The effect of Reynolds number is studied. A good agreement is found between the roughness function (velocity shift) measured in iWMLES and the Colebrook formula and previous experimental measurements.

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    M3 - Conference contribution

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    Yang X, Sadique J, Mittal R, Meneveau C. A combined application of the integral wall model and the rough wall rescaling-recycling method. In 22nd AIAA Computational Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics Inc, AIAA. 2015. (22nd AIAA Computational Fluid Dynamics Conference).