High Angle-of-Attack Aerodynamics

Abstract

The mission of AGARD is to bring together the leading personalities of the NATO nations in the fields of science and technology relating to aerospace for the following purposes:-Exchanging of scientific and technical information; --Continuously stimulating advances in the aerospace sciences relevant to strengthening the common defence posture;-mproving the co-operation among member nations in aerospace research and development;-Providirg scientific and technical advice and assistance to the North Atlantic Military Committee in the field of aerospace research and development;-Rendering acientific and technical assistance, as requested, to other NATO bodies and to member nations in connection with research and development problems in the aerospace field;-Providing assistance to member nations for the purpose of increasing their scientific and technical potential;--Recommending effective ways for the member nations to use their research and development capabilities for the common benefit of the NATO commun'The highest authority within AGARD is the National Delegates Board consisting of officially appointed senior representatives from each member nation. The mission of AGARD is carried out through the Panels which are composed of experts appointed by the National Delegates, the Consultant and Exchange Programme and the Aerospace Applications Studies Programme. The results of AGARD work are reported to the member flations and the NATO Authorities through the AGARD series of publications of which this is one.Participation in AGARD activities is by invitation only and is normally limited to citizens of the NATO nations.The content of this publication has been reproduced directly from material supplied by AGARD or the authors. Published January 1979 Copyright © AGARD 1979All Rights Reserved ISBN 92-835-0230-2 Printed by Technical Editing and Reproduction LtdHarford House, 7-9 Charlotte St, London, WJP JHD . . ,.....• MMUl., FOREWORDThe Symposium was organised at this time because of the continuing need for design data and principles relevant to the flight of aircraft and missiles at high angles of attack and because of the substantial effort that had been devoted over recent years to the development of aircraft and missiles capablc i controlled flight at high angles of attack.Aerodynamics spans the behaviour of air vehicles and the behaviour of fluids. At high angles of attack, we need dynamic stability parameters to describe the behaviour of air vehicles and we need an understanding of separated flow, usually highly 3-dimensional and often unsteady, to describe the behaviour of the air. The Symposium made it clear that the present state of knowledge in the area of high angle-of-attack aerodynamics is descriptive of the dynamics of the vehicle and of the fluid, despite the needs of the designer for rational methods of prediction.The Round Table Discussion included pleas for attention to a large number of problems and principles, some of which are mentioned below.(a) Well-designed experiments, in which theoretical ideas ...

A Novel Small Vertical Axis Wind Turbine Using Delta-Wing Blades

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Recent progress on the study of asymmetric vortex flow over slender bodies

“…In order to implement these high performances the aircraft often fly at high angles of attack, even at a post stall state. Therefore the subject on high angle of attack aerodynamics has been studied extensively and a large number of experimental and computational investigations in this field have been reported in the literature [1][2][3][4][5][6][7][8][9][10][11][12][13][14].…”

Adaptive Compensation at High Angles of Attack

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High AoA flight poses unique aerodynamic challenges, and these issues are studied extensively over the years [1]. An air vehicle at high AoA allows the pilot to rapidly nose-point to ensures a decisive action on the enemy.

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