Abstract
We consider the scattering of incident vorticity waves by a rigid rectangular wing in supersonic flow, and complete the solution of the problem using the modified Wiener-Hopf technique. The new feature of this analysis is the inclusion of a finite chord and a finite span in an analytical solution, and the nature of both the unsteady lift and the far-field radiation are examined in some detail. We find in particular that for large gust sweep angles the finite span can have a significant effect on the lift distribution away from the central part of the span, and that increasing the gust sweep produces a marked reduction in the level of acoustic energy generated by the interaction.
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