Wind-Tunnel Testing of the Wright Brothers' Model B Airfoil
2002; American Institute of Aeronautics and Astronautics; Volume: 39; Issue: 1 Linguagem: Inglês
10.2514/2.2921
ISSN1533-3868
AutoresDrew Landman, Julian Alvarez, Robert L. Ash, Spiros Blackburn, Ken Hyde,
Tópico(s)Aerospace and Aviation Technology
ResumoWind-tunnel tests of a Wright Model B airfoil have been conducted using two-dimensional models in full- and third-scaleat e ightReynoldsnumbers. In aneffortto ascertain theeffectof riband covering constructiononairfoil aerodynamics,thefull-scalemodel wasfabriccoveredand maintainedtheoriginaldimensionsoftheWrightModel B Flyer wing. Because the full-scale model could only be tested over a small angle-of-attack range, a solid surface, third-scale pressure model was constructed. Lift and pitching moment polars from the tests are presented over a rangeof angles of attack spanning zero lift to poststall. A drag polarispresented foran angle-of-attack range from i 4to 6deg.Surfacestaticpressuredistributionsarepresentedfromthethird-scalemodel.Flowvisualizationstudy results show separation on the bottom surface for angles of attack below 0 deg and on the top surface for angles of attack above 6.5 degrees. The Wright wind-tunnel tests of 1901 are shown to have given excellent correlation for lift values when compared to the present test.
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