Computation of a Delta-wing Roll-and-hold Maneuver

Computation of a Delta-wing Roll-and-hold Maneuver PDF Author: Raymond E. Gordnier
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 50

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Book Description
This report presents computations of the flowfield around an 80 degree sweep delta wing undergoing a constant roll-rate maneuver from 0 to 45 degrees. The governing equations for the problem are the unsteady, three- dimensional Navier-Stokes equations. The equations are solved using the implicit, approximately-factored algorithm of Beam-Warming. Fixed roll angle results are also presented and compared with experimental measurements to demonstrate the ability of the numerical technique to accurately capture the flowfield around a rolled delta wing. The dynamic behaviors of the vortex position and strength, as well as their corresponding effect on surface pressure, lift and roll moment, are described. A simple, quasi-static explanation of these vortex behaviors based on effective angle-of-attack and sideslip angle is proposed ... Delta wing roll, Vortex dynamics, Vortical flow, Unsteady maneuver.

Computation of a Delta-wing Roll-and-hold Maneuver

Computation of a Delta-wing Roll-and-hold Maneuver PDF Author: Raymond E. Gordnier
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 50

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Book Description
This report presents computations of the flowfield around an 80 degree sweep delta wing undergoing a constant roll-rate maneuver from 0 to 45 degrees. The governing equations for the problem are the unsteady, three- dimensional Navier-Stokes equations. The equations are solved using the implicit, approximately-factored algorithm of Beam-Warming. Fixed roll angle results are also presented and compared with experimental measurements to demonstrate the ability of the numerical technique to accurately capture the flowfield around a rolled delta wing. The dynamic behaviors of the vortex position and strength, as well as their corresponding effect on surface pressure, lift and roll moment, are described. A simple, quasi-static explanation of these vortex behaviors based on effective angle-of-attack and sideslip angle is proposed ... Delta wing roll, Vortex dynamics, Vortical flow, Unsteady maneuver.

Special Course on Aircraft Dynamics at High Angles of Attack: Experiments and Modelling

Special Course on Aircraft Dynamics at High Angles of Attack: Experiments and Modelling PDF Author: North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Fluid Dynamics Panel. Special Course
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 154

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Book Description
"This report consists of lecture notes of an AGARD Fluid Dynamics Panel Special Course. These notes provide the latest information on the development and use of dynamic experiments in wind tunnels from several of the NATO nations. They address current oscillatory and rotary test techniques, experimental results for typical configurations, and the use of these data for flight mechanics applications. Subject included are: dynamic lift, wing rock, fluid dynamics of rotary flows, mathematical modelling, non-linear data representation, vortex manipulation for control enhancement, and correlations of predictions based on rotary and oscillatory wind-tunnel and flight-test results. The complete course notes are contained in two volumes. The main part of the notes is contained in AGARD Advisory Report 265 (ADA235179). The present volume includes papers on: Unsteady aerodynamics of slender wings; Dynamic stall effects and applications to high performance aircraft; Oscillatory test techniques; Large amplitude oscillations; Oscillatory data for typical configurations; and Forebody vortex control."--Stinet.

Journal of Aircraft

Journal of Aircraft PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 556

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AGARD Report

AGARD Report PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 254

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12th AIAA Applied Aerodynamics Conference

12th AIAA Applied Aerodynamics Conference PDF Author:
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 516

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27th AIAA Fluid Dynamics Conference

27th AIAA Fluid Dynamics Conference PDF Author:
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 654

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Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 392

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AIAA 28th Aerospace Sciences Meeting

AIAA 28th Aerospace Sciences Meeting PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 476

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30th Aerospace Sciences Meeting and Exhibit: 92-0670 - 92-0719

30th Aerospace Sciences Meeting and Exhibit: 92-0670 - 92-0719 PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 566

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39th AIAA Aerospace Sciences Meeting and Exhibit

39th AIAA Aerospace Sciences Meeting and Exhibit PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 826

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