Multigrid and defect correction for the steady Navier-Stokes equations : application to aerodynamics

    Onderzoeksoutput: Boek/rapportBoekAcademic

    Uittreksel

    Theoretical and expcrimental convergence results are presented for nonlinear multigrid and iterative defect correction applied to finite volume discretizations of the full, steady, 2D, compressible NavierStokes equations. lterative defect correction is introduced for circumventing the difficulty in solving Navier Stokes equations discretized with a second- or higher-order accurate convective part. By Fourier analysis applied to a model equation, an optimal choice is made for the operator to be inverted in the defect correction iteration. As a smoothing technique for thc multigrid method, collective symmetric point Gauss-Seidel relaxation is applied with as the basic solution technique: exact Newton iteration applied to a continuously differentiable, first-order upwind discretization of the full Navier Stokes equations. For nonsmooth flow problems, the convergence results obtained are already competitive with those of well-established Navier-Stokes methods. For smooth flow problems, the present method performs better than any standard method. Here, first-order discretization error accuracy is attained in a single multigrid cycle, and second-order accuracy in only one defect correction cycle. The method contributes to the state of the art in efficiently computing compressible viscous flows.
    Originele taal-2Engels
    Plaats van productieAmsterdam
    UitgeverijCentrum voor Wiskunde en Informatica
    Aantal pagina's127
    ISBN van geprinte versie90-6196-391-5
    StatusGepubliceerd - 1991

    Publicatie series

    NaamCWI tracts
    Volume74

    Vingerafdruk

    aerodynamics
    Navier-Stokes equation
    defects
    iteration
    multigrid methods
    cycles
    Fourier analysis
    viscous flow
    smoothing
    newton
    operators

    Citeer dit

    Koren, B. (1991). Multigrid and defect correction for the steady Navier-Stokes equations : application to aerodynamics. (CWI tracts; Vol. 74). Amsterdam: Centrum voor Wiskunde en Informatica.
    Koren, B. / Multigrid and defect correction for the steady Navier-Stokes equations : application to aerodynamics. Amsterdam : Centrum voor Wiskunde en Informatica, 1991. 127 blz. (CWI tracts).
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    title = "Multigrid and defect correction for the steady Navier-Stokes equations : application to aerodynamics",
    abstract = "Theoretical and expcrimental convergence results are presented for nonlinear multigrid and iterative defect correction applied to finite volume discretizations of the full, steady, 2D, compressible NavierStokes equations. lterative defect correction is introduced for circumventing the difficulty in solving Navier Stokes equations discretized with a second- or higher-order accurate convective part. By Fourier analysis applied to a model equation, an optimal choice is made for the operator to be inverted in the defect correction iteration. As a smoothing technique for thc multigrid method, collective symmetric point Gauss-Seidel relaxation is applied with as the basic solution technique: exact Newton iteration applied to a continuously differentiable, first-order upwind discretization of the full Navier Stokes equations. For nonsmooth flow problems, the convergence results obtained are already competitive with those of well-established Navier-Stokes methods. For smooth flow problems, the present method performs better than any standard method. Here, first-order discretization error accuracy is attained in a single multigrid cycle, and second-order accuracy in only one defect correction cycle. The method contributes to the state of the art in efficiently computing compressible viscous flows.",
    author = "B. Koren",
    year = "1991",
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    isbn = "90-6196-391-5",
    series = "CWI tracts",
    publisher = "Centrum voor Wiskunde en Informatica",

    }

    Koren, B 1991, Multigrid and defect correction for the steady Navier-Stokes equations : application to aerodynamics. CWI tracts, vol. 74, Centrum voor Wiskunde en Informatica, Amsterdam.

    Multigrid and defect correction for the steady Navier-Stokes equations : application to aerodynamics. / Koren, B.

    Amsterdam : Centrum voor Wiskunde en Informatica, 1991. 127 blz. (CWI tracts; Vol. 74).

    Onderzoeksoutput: Boek/rapportBoekAcademic

    TY - BOOK

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    AU - Koren, B.

    PY - 1991

    Y1 - 1991

    N2 - Theoretical and expcrimental convergence results are presented for nonlinear multigrid and iterative defect correction applied to finite volume discretizations of the full, steady, 2D, compressible NavierStokes equations. lterative defect correction is introduced for circumventing the difficulty in solving Navier Stokes equations discretized with a second- or higher-order accurate convective part. By Fourier analysis applied to a model equation, an optimal choice is made for the operator to be inverted in the defect correction iteration. As a smoothing technique for thc multigrid method, collective symmetric point Gauss-Seidel relaxation is applied with as the basic solution technique: exact Newton iteration applied to a continuously differentiable, first-order upwind discretization of the full Navier Stokes equations. For nonsmooth flow problems, the convergence results obtained are already competitive with those of well-established Navier-Stokes methods. For smooth flow problems, the present method performs better than any standard method. Here, first-order discretization error accuracy is attained in a single multigrid cycle, and second-order accuracy in only one defect correction cycle. The method contributes to the state of the art in efficiently computing compressible viscous flows.

    AB - Theoretical and expcrimental convergence results are presented for nonlinear multigrid and iterative defect correction applied to finite volume discretizations of the full, steady, 2D, compressible NavierStokes equations. lterative defect correction is introduced for circumventing the difficulty in solving Navier Stokes equations discretized with a second- or higher-order accurate convective part. By Fourier analysis applied to a model equation, an optimal choice is made for the operator to be inverted in the defect correction iteration. As a smoothing technique for thc multigrid method, collective symmetric point Gauss-Seidel relaxation is applied with as the basic solution technique: exact Newton iteration applied to a continuously differentiable, first-order upwind discretization of the full Navier Stokes equations. For nonsmooth flow problems, the convergence results obtained are already competitive with those of well-established Navier-Stokes methods. For smooth flow problems, the present method performs better than any standard method. Here, first-order discretization error accuracy is attained in a single multigrid cycle, and second-order accuracy in only one defect correction cycle. The method contributes to the state of the art in efficiently computing compressible viscous flows.

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    Koren B. Multigrid and defect correction for the steady Navier-Stokes equations : application to aerodynamics. Amsterdam: Centrum voor Wiskunde en Informatica, 1991. 127 blz. (CWI tracts).