MOTION OF A SET OF BANKED WINGS HAVING OPTIMUM DISTRIBUTION OF CIRCULATION WHEN OPERATING NEAR A SOLID GROUND PLANE

On the basis of the assumptions of Prandtl's lifting line theory an integro-differential equation for the optimum distribution of circulation over the span for a system of two wings located a certain distance apart and having the same angle of bank Beta with respect to the ground is derived. An...

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Bibliographic Details
Main Author: Zinchuk,P. I
Format: Report
Language:English
Subjects:
AERODYNAMIC CHARACTERISTICS
AERODYNAMIC CONTROL SURFACES
APPROXIMATION(MATHEMATICS)
DIFFERENTIAL EQUATIONS
Fluid Mechanics
GROUND EFFECT
GROUND EFFECT MACHINES
INTEGRAL EQUATIONS
LIFT
MOMENTS
Surface Effect Vehicles & Amphibious Vehicles
TRANSLATIONS
TURNING FLIGHT
USSR
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Summary:On the basis of the assumptions of Prandtl's lifting line theory an integro-differential equation for the optimum distribution of circulation over the span for a system of two wings located a certain distance apart and having the same angle of bank Beta with respect to the ground is derived. An approximate solution of this equation is found and expressions are obtained for the lifting force and pitch-moment coefficients. The results obtained for a practical example (Beta = 15 degrees) are given in graphical form. (Author) Trans. of Gidrodinamika Bolshikh Skorostei (USSR) n3 p77-83 1967, by L. J. Holtschlag.