Modeling of unsteady aerodynamic loads
Modeling of unsteady aerodynamic loads
Time-accurate solutions of the Euler or Navier-Stokes equations are still nowadays a computationally expensive approach for applications where a magnitude of parameters has to be investigated. This work focuses on flight dynamics-related studies. The generation of several low-order models for the evaluation of unsteady and non-linear aerodynamic loads are investigated. The validity of low-order models presented is assessed by comparing the model output with unsteady time-accurate Computational Fluid-Dynamics (CFD) simulations. The test case is the NACA 0012 airfoil. The low-order models considered are: a non-linear model based on aerodynamic derivatives, a Volterra model, a surrogate-based recurrence-framework model, linear indicial functions and radial basis functions trained with neural networks.
978-1-62410-153-3
Da Ronch, A.
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McCracken, A.
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Badcock, K. J.
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Ghoreyshi, M.
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Cummings, R. M.
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August 2011
Da Ronch, A.
a2f36b97-b881-44e9-8a78-dd76fdf82f1a
McCracken, A.
e799c540-89ac-48df-9260-3c5a68761cfb
Badcock, K. J.
64c4dc5d-1f2f-4358-af31-f6506c1810ef
Ghoreyshi, M.
e43d6179-9d81-4c53-9057-9c7f8ec588fb
Cummings, R. M.
84cf214a-f5b0-452b-8244-2b52963f17e0
Da Ronch, A., McCracken, A., Badcock, K. J., Ghoreyshi, M. and Cummings, R. M.
(2011)
Modeling of unsteady aerodynamic loads.
AIAA Atmospheric Flight Mechanics Conference.
08 - 11 Aug 2011.
16 pp
.
(doi:10.2514/6.2011-6524).
Record type:
Conference or Workshop Item
(Paper)
Abstract
Time-accurate solutions of the Euler or Navier-Stokes equations are still nowadays a computationally expensive approach for applications where a magnitude of parameters has to be investigated. This work focuses on flight dynamics-related studies. The generation of several low-order models for the evaluation of unsteady and non-linear aerodynamic loads are investigated. The validity of low-order models presented is assessed by comparing the model output with unsteady time-accurate Computational Fluid-Dynamics (CFD) simulations. The test case is the NACA 0012 airfoil. The low-order models considered are: a non-linear model based on aerodynamic derivatives, a Volterra model, a surrogate-based recurrence-framework model, linear indicial functions and radial basis functions trained with neural networks.
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AIAA-2011-6524.pdf
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Published date: August 2011
Venue - Dates:
AIAA Atmospheric Flight Mechanics Conference, 2011-08-08 - 2011-08-11
Organisations:
Aerodynamics & Flight Mechanics Group
Identifiers
Local EPrints ID: 351925
URI: http://eprints.soton.ac.uk/id/eprint/351925
ISBN: 978-1-62410-153-3
PURE UUID: 76ad7895-dc95-4073-b5bd-47c4bca87d17
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Date deposited: 02 May 2013 14:22
Last modified: 15 Mar 2024 03:46
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Contributors
Author:
A. McCracken
Author:
K. J. Badcock
Author:
M. Ghoreyshi
Author:
R. M. Cummings
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