Wind-Tunnel Study of the Flutter Characteristics of a Supercritical Wing
作者： R. Houwink , A. N. Kraan , R. J. Zwaan
DOI: 10.2514/3.57409
关键词:
摘要: A wind-tunnel flutter test on a supercritical wing model is described. Objectives of the were to investigate transonic dip and make comparisons with calculated characteristics in which quasi-threedimensional theory was used. The beginning measured satisfactory agreement could be found. An additional instability bottom correlated loss transition strip effectivity at low Reynolds numbers. Nomenclature a,b = correction factors [Eqs. (2)] c =chord Clo sectional steady lift coefficient CL - / frequency g damping k reduced (related semichord) unsteady coefficient, k2D, k3D m moment quarterchord), m2D, m3D MO, Mach number P0 stagnation pressure q generalized coordinate Rec related mean aerodynamic chord xt position angle incidence (mean) sweep
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