Flow Visualization of a Rolling Delta Wing and Its Pertinence to the Non-linear Indicial Response Model PDF Download
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Author: Gregory Addington
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Gregory Addington
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 492
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Author:
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ISBN:
Category : Flight simulators
Languages : en
Pages : 478
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 23
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 634
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Author: Elizabeth M. Lee-Rausch
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Category : Airplanes
Languages : en
Pages : 36
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Author: Raymond E. Gordnier
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ISBN:
Category : Airplanes
Languages : en
Pages : 50
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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.
Author: Eric J. Stephen
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Category :
Languages : en
Pages :
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Author: Leon L. Van Dommelen
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 30
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Neural network procedures were explored with the objectives to control a delta wing in the non-linear domain. Results show that neural networks are well suited to represent non-linear computed lift and pressure forces on delta wings. A model problem, the flare maneuver, suggests that neural network controllers can perform well for non-linear systems provided that suitable input and training data are provided to it.
Author: Lewis R. Fisher
Publisher:
ISBN:
Category : Vibration
Languages : en
Pages : 54
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