Accession Number : ADA135251

Title :   The Two Dimensional Inextensible Lifting Membrane Airfoil - Theory & Experiment.

Descriptive Note : Final rept.,

Corporate Author : NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA AIRCRAFT AND CREW SYSTEMS TECHNOLOGY DIRECTORATE

Personal Author(s) : Greenhalgh,S

PDF Url : ADA135251

Report Date : 18 Feb 1983

Pagination or Media Count : 63

Abstract : A theoretical solution to the aerodynamic/structural two-dimensional flexible lifting membrane has been developed. The solution predicts lift, membrane shape and excess material length as a function of the tension in the membrane and the angle of attack of the membrane. The method is simpler than existing solutions and the results are in agreement with experiment. Wind tunnel tests on two-dimensional lifting membranes have been conducted at Reynolds numbers of approximately 1.3 million. Basic aerodynamic data and membrane tension data were obtained. (Author)

Descriptors :   *Lifting surfaces, *Membranes, *Flexible structures, Flow fields, Two dimensional, Fabrics, Airfoils, Folding wings, Mathematical prediction, Angle of attack, Lift, Tension, Shape, Aerodynamic loading, Mathematical models, Wind tunnel tests, Aerodynamic characteristics

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE