New NASA-Ames wind-tunnel techniques for studying airplane spin and two-dimensional unsteady aerodynamicsTwo new wind tunnel test apparatuses were developed at NASA-Ames Research Center. The first is a rotary-balance apparatus to be used in the Ames 12-Foot Pressure Tunnel for investigating the effects of Reynolds number, spin rate, and angle of attack on the aerodynamics of fighter and general aviation aircraft in a steady spin motion. The second apparatus provides capability for oscillating a large two dimensional wing (0.5 m chord, 1.35 m span) instrumented with steady and unsteady pressure transducers in the Ames 11 x 11 ft. Transonic Wind Tunnel. A complete description of both apparatuses, their capabilities, and some typical wind tunnel results are presented.
Document ID
19790006893
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Malcolm, G. N. (NASA Ames Research Center Moffett Field, CA, United States)
Davis, S. S. (NASA Ames Research Center Moffett Field, CA, United States)