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

By Anand Kumar


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

Topics: Aerodynamics
Publisher: 'American Institute of Aeronautics and Astronautics (AIAA)'
Year: 1996
DOI identifier: 10.2514/3.13350
OAI identifier:
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