Effect of artificial viscosity on numerical simulation of leading-edge vortex breakdown

Kumar, Anand (1994) Effect of artificial viscosity on numerical simulation of leading-edge vortex breakdown. Technical Report. National Aerospace Laboratories, Bangalore, India.

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    Abstract

    Two artificial dissipation models, the original model of Jameson, Schmidt and Turkel. and its modification by Martinelli. are applied to compute vortex breakdown on a delta wing. The original model can add too much of13; artificial dissipation along grid directions having smaller spectral radii. The non-isotropic form of the latter model provides a better control over the artificial dissipation that is added along each grid direction. The computations presented in the paper show that the latter model gives a more accurate prediction of the flow on a given grid.

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Vortex breakdown;Delta wing;Euler equations
    Subjects: ENGINEERING > Fluid Mechanics and Thermodynamics
    Division/Department: Computational and Theoretical Fluid Dynamics Division
    Depositing User: Mr. N A
    Date Deposited: 28 Jun 2006
    Last Modified: 24 May 2010 09:42
    URI: http://nal-ir.nal.res.in/id/eprint/1543

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