Application of a vortex lattice numerical model in the calculation of inviscid incompressible flow around delta wings |
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Authors: | G. Bandyopadhyay |
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Abstract: | The flow over a flat plate delta wing at incidence and in sideslip is studied using vortex lattice models based on streamwise penelling. For the attached flow problem the effect of sideslip is simulated by modifying the standard vortex lattice model for zero sideslip by aligning the trailing vortices aft of the wing along the resultant flow direction. For the separated flow problem a non-linear vortex lattice model is developed for both zero and non-zero sideslip angles in which the shape and position of the leading edge separation vortices are calculated by an iterative procedure starting from an assumed initial shape. The theoretical values are compared with available theoretical and experimental results. |
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Keywords: | Delta wing Leading edge separation Free vortex Iteration Sideslip Rolling moment Dihedral |
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