Unsteady Flows Around Three-Dimensional Lifting Surfaces
Unsteady Flows Around Three-Dimensional Lifting Surfaces
- Neue Suche nach: M. Gad-el-Hal
- Neue Suche nach: M. Gad-el-Hal
The time-dependent flows around wings and slender bodies of revolution undergoing large-amplitude harmonic motions were investigated using unique flow visualization techniques. The lifting surfaces were towed in an 18-meter water channel at Reynolds numbers up to 750,000. The effects of planform, leading edge contour, reduced frequency and Reynolds number were investigated. The unsteady separation phenomenon was found to be significantly different from the separation on a lifting surface in steady flight. The role of the separation vortices was elaborated and a model of the flow field is proposed. Keywords: Pitch motion, Delta wings, Maneuverability, Unsteady separated flows, Lifting surfaces, Three-dimensional wings, Body of revolution, Supermaneuverability. (EDC)
Dokumentinformationen
Unsteady Flows Around Three-Dimensional Lifting Surfaces
1985
125 pages
Report
Keine Angabe
Englisch
Aerodynamics , Fluid Mechanics , Delta wings , Flow separation , Lifting surfaces , Three dimensional , Unsteady flow , Amplitude , Bodies of revolution , Contours , Flight , Flow fields , Flow visualization , Harmonics , Leading edges , Motion , Pitch(Motion) , Planform , Reynolds number , Slender bodies , Steady state , Time dependence , Towed bodies , Vortices , Water channels , Supermaneuverability
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