Computation and evaluation of dynamic derivatives using CFD
Computation and evaluation of dynamic derivatives using CFD
This paper focuses on the computation of dynamic derivatives for full aircraft configurations. The flow is modelled using the Euler and RANS equations and an unsteady time-domain solver is used for the computation of aerodynamic loads for forced periodic motions. The study investigates the variation of damping values through the transonic regime and for several permutations of motion parameters for the Standard Dynamics Model geometry. A benchmark against experimental data is presented for the Transonic CRuiser wind tunnel geometry. For the SDM, strake vortices and their breakdown are observed when increasing the mean angle of attack during the applied pitch sinusoidal motion. A good agreement is obtained with available experimental data. For the TCR, a validation of longitudinal aerodynamic characteristics is first considered. Numerical experiments for the estimation of damping derivatives and for large amplitude forced oscillations in pitch axis are compared to wind tunnel data. Simulations are in agreement with experimental data up to high angles of attack.
978-1-62410-141-0
Da Ronch, A.
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Vallespin, D.
b979d052-a22b-4b46-8578-2fb851b7e174
Ghoreyshi, M.
e43d6179-9d81-4c53-9057-9c7f8ec588fb
Badcock, K. J.
64c4dc5d-1f2f-4358-af31-f6506c1810ef
June 2010
Da Ronch, A.
a2f36b97-b881-44e9-8a78-dd76fdf82f1a
Vallespin, D.
b979d052-a22b-4b46-8578-2fb851b7e174
Ghoreyshi, M.
e43d6179-9d81-4c53-9057-9c7f8ec588fb
Badcock, K. J.
64c4dc5d-1f2f-4358-af31-f6506c1810ef
Da Ronch, A., Vallespin, D., Ghoreyshi, M. and Badcock, K. J.
(2010)
Computation and evaluation of dynamic derivatives using CFD.
28th AIAA Applied Aerodynamics Conference, Chicago, United States.
28 Jun - 01 Jul 2010.
27 pp
.
(doi:10.2514/6.2010-4817).
Record type:
Conference or Workshop Item
(Paper)
Abstract
This paper focuses on the computation of dynamic derivatives for full aircraft configurations. The flow is modelled using the Euler and RANS equations and an unsteady time-domain solver is used for the computation of aerodynamic loads for forced periodic motions. The study investigates the variation of damping values through the transonic regime and for several permutations of motion parameters for the Standard Dynamics Model geometry. A benchmark against experimental data is presented for the Transonic CRuiser wind tunnel geometry. For the SDM, strake vortices and their breakdown are observed when increasing the mean angle of attack during the applied pitch sinusoidal motion. A good agreement is obtained with available experimental data. For the TCR, a validation of longitudinal aerodynamic characteristics is first considered. Numerical experiments for the estimation of damping derivatives and for large amplitude forced oscillations in pitch axis are compared to wind tunnel data. Simulations are in agreement with experimental data up to high angles of attack.
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AIAA-2010-4817.pdf
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Published date: June 2010
Venue - Dates:
28th AIAA Applied Aerodynamics Conference, Chicago, United States, 2010-06-28 - 2010-07-01
Organisations:
Aerodynamics & Flight Mechanics Group
Identifiers
Local EPrints ID: 351816
URI: http://eprints.soton.ac.uk/id/eprint/351816
ISBN: 978-1-62410-141-0
PURE UUID: 757d9b58-9e1d-42df-a7a6-9d3d5a3e9e6a
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Date deposited: 02 May 2013 14:10
Last modified: 15 Mar 2024 03:46
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Contributors
Author:
D. Vallespin
Author:
M. Ghoreyshi
Author:
K. J. Badcock
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