Accurate development of leading-edge vortex using an embedded conical grid

Kumar, Anand (1996) Accurate development of leading-edge vortex using an embedded conical grid. AIAA Journal, 34 (10). pp. 2038-2046. ISSN 0001-1452

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    The vortex formation and its development near the apex of a sharp-edged delta wing are poorly represented on conventional grids because of dissimilar length scales of the flow and the grid. The problem is overcome by having an embedded conical grid surrounding the wing. Computed Euler solutions on such an embedded conical grid and on a conventional H-O grid are presented for a range of incidence for a subsonic freestream. The solutions on the embedded conical grid show that the vortex is well resolved right from the apex, even at a very low incidence. The vortex breakdown is well predicted on the embedded conical grid, including the case where the breakdown has just moved upstream of the trailing edge.

    Item Type: Journal Article
    Additional Information: Copyright for this article belongs to AIAA
    Uncontrolled Keywords: Sharp leading edges;Vortices;Computational grids;Deltawings;Euler equations of motion;Wing flow;subsonic flow;trailing edges
    Subjects: AERONAUTICS > Aerodynamics
    Division/Department: CSIR Centre for Mathematical Modelling and Computer Simulation
    Depositing User: M/S ICAST NAL
    Date Deposited: 08 Mar 2010
    Last Modified: 24 May 2010 09:51

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