Lift-curve slope for finite-aspect-ratio wings

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[1] Laitone, E.V.
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Laitone, E.V. | 1600年 / 26期
关键词：
Flow of Fluids--Potential Flow - Wind Tunnels;
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摘要：
Recently derived exact solutions for the lift produced by an elliptic planform flat plate in steady incompressible potenial flow are applied to improve the commonly used approximations for the lift curve slope of finite aspect-ratio wings. An excellent approximation is derived for the initial lift-curve slope when the aspect ratio &le2. For large aspect ratios, the lift-curve-slope equation is improved so that it can more accurately calculate the corresponding two-dimensional lift-curve slope from the wind tunnel test data of a finite-aspect-ratio wing.
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