A flow in a spatial laminar boundary layer on a thin wing with a point of inflection in the leading edge is considered in the regime of strong viscous-inviscid interaction. The induced pressure is determined using the «the tangent of the wedge» formula, which is generalized to the nonstationary case. Based on the analysis of boundary layer equations, the integral relation for determining the characteristic surface is obtained. Using numerical analysis, radiation patterns of perturbation velocity are defined at different values of the temperature factor and the sweep angles of leading edges.
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