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    Detached-Eddy Simulation With Compressibility Corrections Applied to a Supersonic Axisymmetric Base Flow

    Source: Journal of Fluids Engineering:;2002:;volume( 124 ):;issue: 004::page 911
    Author:
    James R. Forsythe
    ,
    Klaus A. Hoffmann
    ,
    Russell M. Cummings
    ,
    Kyle D. Squires
    DOI: 10.1115/1.1517572
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Detached-eddy simulation is applied to an axisymmetric base flow at supersonic conditions. Detached-eddy simulation is a hybrid approach to modeling turbulence that combines the best features of the Reynolds-averaged Navier-Stokes and large-eddy simulation approaches. In the Reynolds-averaged mode, the model is currently based on either the Spalart-Allmaras turbulence model or Menter’s shear stress transport model; in the large-eddy simulation mode, it is based on the Smagorinski subgrid scale model. The intended application of detached-eddy simulation is the treatment of massively separated, high-Reynolds number flows over complex configurations (entire aircraft, automobiles, etc.). Because of the intented future application of the methods to complex configurations, Cobalt, an unstructured grid Navier-Stokes solver, is used. The current work incorporates compressible shear layer corrections in both the Spalart-Allmaras and shear stress transport-based detached-eddy simulation models. The effect of these corrections on both detached-eddy simulation and Reynolds-averaged Navier-Stokes models is examined, and comparisons are made to the experiments of Herrin and Dutton. Solutions are obtained on several grids—both structured and unstructured—to test the sensitivity of the models and code to grid refinement and grid type. The results show that predictions of base flows using detached-eddy simulation compare very well with available experimental data, including turbulence quantities in the wake of the axisymmetric body.
    keyword(s): Compressibility , Flow (Dynamics) , Turbulence , Eddies (Fluid dynamics) , Simulation , Shear (Mechanics) , Boundary layers , Reynolds-averaged Navier–Stokes equations , Pressure AND Stress ,
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      Detached-Eddy Simulation With Compressibility Corrections Applied to a Supersonic Axisymmetric Base Flow

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/126925
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    • Journal of Fluids Engineering

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    contributor authorJames R. Forsythe
    contributor authorKlaus A. Hoffmann
    contributor authorRussell M. Cummings
    contributor authorKyle D. Squires
    date accessioned2017-05-09T00:07:42Z
    date available2017-05-09T00:07:42Z
    date copyrightDecember, 2002
    date issued2002
    identifier issn0098-2202
    identifier otherJFEGA4-27179#911_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/126925
    description abstractDetached-eddy simulation is applied to an axisymmetric base flow at supersonic conditions. Detached-eddy simulation is a hybrid approach to modeling turbulence that combines the best features of the Reynolds-averaged Navier-Stokes and large-eddy simulation approaches. In the Reynolds-averaged mode, the model is currently based on either the Spalart-Allmaras turbulence model or Menter’s shear stress transport model; in the large-eddy simulation mode, it is based on the Smagorinski subgrid scale model. The intended application of detached-eddy simulation is the treatment of massively separated, high-Reynolds number flows over complex configurations (entire aircraft, automobiles, etc.). Because of the intented future application of the methods to complex configurations, Cobalt, an unstructured grid Navier-Stokes solver, is used. The current work incorporates compressible shear layer corrections in both the Spalart-Allmaras and shear stress transport-based detached-eddy simulation models. The effect of these corrections on both detached-eddy simulation and Reynolds-averaged Navier-Stokes models is examined, and comparisons are made to the experiments of Herrin and Dutton. Solutions are obtained on several grids—both structured and unstructured—to test the sensitivity of the models and code to grid refinement and grid type. The results show that predictions of base flows using detached-eddy simulation compare very well with available experimental data, including turbulence quantities in the wake of the axisymmetric body.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleDetached-Eddy Simulation With Compressibility Corrections Applied to a Supersonic Axisymmetric Base Flow
    typeJournal Paper
    journal volume124
    journal issue4
    journal titleJournal of Fluids Engineering
    identifier doi10.1115/1.1517572
    journal fristpage911
    journal lastpage923
    identifier eissn1528-901X
    keywordsCompressibility
    keywordsFlow (Dynamics)
    keywordsTurbulence
    keywordsEddies (Fluid dynamics)
    keywordsSimulation
    keywordsShear (Mechanics)
    keywordsBoundary layers
    keywordsReynolds-averaged Navier–Stokes equations
    keywordsPressure AND Stress
    treeJournal of Fluids Engineering:;2002:;volume( 124 ):;issue: 004
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian