Assessing the impact of aerodynamic modelling on manoeuvring aircraft
Assessing the impact of aerodynamic modelling on manoeuvring aircraft
This paper investigates the impact of aerodynamic models on the dynamic response of a free-flying aircraft wing. Several options for the aerodynamics are evaluated, from two-dimensional thin aerofoil aerodynamics and unsteady vortex-lattice method up to computational fluid dynamics. A nonlinear formulation of the rigid body dynamics is used in all cases. Results are generated using a numerical framework that will allow in the near future multi-disciplinary fluid/structure/flight analysis. In this paper, flexibility effects are neglected. A validation for fluid/flight models is presented. The well-established approach based on stability derivatives is also used, and is found in good agreement with solutions obtained from linear aerodynamic models. The uncertainties in predicted trajectories of the free-flying wing are, in general, large and attributed to the aerodynamics only. This suggests that a careful control law synthesis should be done to account for uncertainties from modelling techniques
Da Ronch, A.
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McCracken, A.J.
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Tantaroudas, N.D.
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Badcock, K.J.
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Hesse, H.
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Palacios, R.
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13 January 2014
Da Ronch, A.
a2f36b97-b881-44e9-8a78-dd76fdf82f1a
McCracken, A.J.
082d33a8-7ca9-45f4-8c2c-9f8a88ccd19b
Tantaroudas, N.D.
51093cf2-7166-4d4f-84b9-533a7027ae77
Badcock, K.J.
f7ae5be8-8140-4e46-81f8-8d1021fd989f
Hesse, H.
fafd0042-34be-4c6b-9725-145f46eb250f
Palacios, R.
bca817f7-9eff-43b2-a085-1100e2918678
Da Ronch, A., McCracken, A.J., Tantaroudas, N.D., Badcock, K.J., Hesse, H. and Palacios, R.
(2014)
Assessing the impact of aerodynamic modelling on manoeuvring aircraft.
AIAA SciTech 2014, AIAA Atmospheric Flight Mechanics Conference, National Harbor, Moldova, Republic of.
11 - 15 Jan 2014.
16 pp
.
(doi:10.2514/6.2014-0732).
Record type:
Conference or Workshop Item
(Paper)
Abstract
This paper investigates the impact of aerodynamic models on the dynamic response of a free-flying aircraft wing. Several options for the aerodynamics are evaluated, from two-dimensional thin aerofoil aerodynamics and unsteady vortex-lattice method up to computational fluid dynamics. A nonlinear formulation of the rigid body dynamics is used in all cases. Results are generated using a numerical framework that will allow in the near future multi-disciplinary fluid/structure/flight analysis. In this paper, flexibility effects are neglected. A validation for fluid/flight models is presented. The well-established approach based on stability derivatives is also used, and is found in good agreement with solutions obtained from linear aerodynamic models. The uncertainties in predicted trajectories of the free-flying wing are, in general, large and attributed to the aerodynamics only. This suggests that a careful control law synthesis should be done to account for uncertainties from modelling techniques
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Published date: 13 January 2014
Venue - Dates:
AIAA SciTech 2014, AIAA Atmospheric Flight Mechanics Conference, National Harbor, Moldova, Republic of, 2014-01-11 - 2014-01-15
Organisations:
Aerodynamics & Flight Mechanics Group
Identifiers
Local EPrints ID: 363685
URI: http://eprints.soton.ac.uk/id/eprint/363685
PURE UUID: 728855ba-f729-4e33-9799-46a62f015adb
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Date deposited: 31 Mar 2014 08:52
Last modified: 15 Mar 2024 03:46
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Contributors
Author:
A.J. McCracken
Author:
N.D. Tantaroudas
Author:
K.J. Badcock
Author:
H. Hesse
Author:
R. Palacios
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