Title: Improving the aerodynamic performance of small-aspect-ratio wings at hypersonic speeds
Abstract: Present approaches to improving the aerodynamic performance of lifting surfaces at hypersonic speeds rely on the elementary Newton formula for the pressure at a surface [1,2]. Aerodynamic shapes of fairly high supersonic and hypersonic performance have also been developed as waveriders—bodies formed by stream surfaces of inviscid flows behind the shock waves of simple configurations, for which exact solutions exist [3–6]. In this paper the variational problem for the shape of a thin lifting surface of high hypersonic performance is formulated by using analytical expressions obtained in [7, 8]for the flow around a small-aspect-ratio wing at an angle of attack in the next approximation to the Newtonian theory. The solutions of this problem define the planform of the lower surface of the wing and its leading edge, ensuring an appreciable increase in aerodynamic performance compared with the maximum of Newtonian theory, for a given lift force or payload.
Publication Year: 1992
Publication Date: 1992-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 1
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