Three-dimensional finite-volume method for incompressible flows with complex boundaries

Majumdar, S and Rodi, W and Zhu, J (1990) Three-dimensional finite-volume method for incompressible flows with complex boundaries. Technical Report. National Aeronautical Laboratory, Bangalore, India.

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    Abstract

    A finite-volume method is presented for calculating incompressible flows in complex three-dimensional situations with curved irregular boundaries. The method employs structured non-orthogonal grids, cell-centered variable arrangement and Cartesian velocity components. A special inerpolation procedure for evaluating the mass fluxes at the cell-faces is used to avoid the non-physical oscillation of flow variables usually encountered with the cell-centered arrangement. The SIMPLE algorithm is used to handle the pressure-velocity coupling. A recently. proposed low diffusive and. bounded scheme is introduced to approximate the convection terms in the transport equations. The computer code and the relevent data structure are so organised that most of the code except the implicit linear solver used is fully vectorisable so as to exploit the potential of modern vector computers. The capabilities of the numerical procedure are demonstrated by application to a few internal and external three-dimensional laminar flows. In all cases the CPU-time on a grid with typically 280DO grid nodes was below 1 minute.

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Finite volume method;Body fitted grids;3D incompressible flow;Simple algorithm
    Subjects: ENGINEERING > Fluid Mechanics and Thermodynamics
    MATHEMATICAL AND COMPUTER SCIENCES > Numerical Analysis
    Division/Department: Computational and Theoretical Fluid Dynamics Division, Computational and Theoretical Fluid Dynamics Division, Computational and Theoretical Fluid Dynamics Division
    Depositing User: Mrs Neetu Chandra
    Date Deposited: 04 Jul 2006
    Last Modified: 24 May 2010 09:44
    URI: http://nal-ir.nal.res.in/id/eprint/1898

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