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experimental study of aerodynamic behavior in wind tunnels with ornithopter and plane models
Author(s): 
Pages: 54-58
Year: Issue:  1
Journal: Journal of Thermal Science

Keyword:  wind tunnel aerodynamics characteristics ornithopter model plane wall jet.;
Abstract: <正>There are similarities between planes and birds. In fact aerodynamics bases are the same. In order to make some comparisons, this paper presents two series of experiments : one in a wind tunnel with an ornithopter model for measurements of aerodynamic forces with flapping wings. The wing movement has two degrees of freedom flapping around the longitudinal axis of the model and feathering around the wing axis. Measurements of aerodynamic forces: lift and drag in static case averaging values during many cycles of movement and in dynamic case have been performed. The other part of the paper concerns velocity and turbulence measurements on a metal plane wall jet in a wind tunnel with and without a rough surface, with and without acoustic vibrations in order to simulate a plane wing. Aerodynamic characteristics have been obtained in all cases.
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