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Computational fluid dynamics framework for aerodynamic model assessment

Computational fluid dynamics framework for aerodynamic model assessment
Computational fluid dynamics framework for aerodynamic model assessment
This paper reviews the work carried out at the University of Liverpool to assess the use of CFD methods for aircraft flight dynamics applications. Three test cases are discussed in the paper, namely, the Standard Dynamic Model, the Ranger 2000 jet trainer and the Stability and Control Unmanned Combat Air Vehicle. For each of these, a tabular aerodynamic model based on CFD predictions is generated along with validation against wind tunnel experiments and flight test measurements. The main purpose of the paper is to assess the validity of the tables of aerodynamic data for the force and moment prediction of realistic aircraft manoeuvres. This is done by generating a manoeuvre based on the tables of aerodynamic data, and then replaying the motion through a time-accurate computational fluid dynamics calculation. The resulting forces and moments from these simulations were compared with predictions from the tables. As the latter are based on a set of steady-state predictions, the comparisons showed perfect agreement for slow manoeuvres. As manoeuvres became more aggressive some disagreement was seen, particularly during periods of large rates of change in attitudes. Finally, the Ranger 2000 model was used on a flight simulator.
flight dynamics, cfd, aircraft manoeuvre, manoeuvre
0376-0421
2-18
Vallespin, D.
b979d052-a22b-4b46-8578-2fb851b7e174
Badcock, K. J.
64c4dc5d-1f2f-4358-af31-f6506c1810ef
Da Ronch, A.
a2f36b97-b881-44e9-8a78-dd76fdf82f1a
White, M.
f3f45975-da5c-48da-9f6f-c368c5a8146b
Perfect, P.
cd2d5a04-5676-4b5e-b924-914320dd810d
Ghoreyshi, M.
e43d6179-9d81-4c53-9057-9c7f8ec588fb
Vallespin, D.
b979d052-a22b-4b46-8578-2fb851b7e174
Badcock, K. J.
64c4dc5d-1f2f-4358-af31-f6506c1810ef
Da Ronch, A.
a2f36b97-b881-44e9-8a78-dd76fdf82f1a
White, M.
f3f45975-da5c-48da-9f6f-c368c5a8146b
Perfect, P.
cd2d5a04-5676-4b5e-b924-914320dd810d
Ghoreyshi, M.
e43d6179-9d81-4c53-9057-9c7f8ec588fb

Vallespin, D., Badcock, K. J., Da Ronch, A., White, M., Perfect, P. and Ghoreyshi, M. (2012) Computational fluid dynamics framework for aerodynamic model assessment. [in special issue: Applied Computational Aerodynamics and High Performance Computing in the UK] Progress in Aerospace Sciences, 52, 2-18. (doi:10.1016/j.paerosci.2011.12.004).

Record type: Article

Abstract

This paper reviews the work carried out at the University of Liverpool to assess the use of CFD methods for aircraft flight dynamics applications. Three test cases are discussed in the paper, namely, the Standard Dynamic Model, the Ranger 2000 jet trainer and the Stability and Control Unmanned Combat Air Vehicle. For each of these, a tabular aerodynamic model based on CFD predictions is generated along with validation against wind tunnel experiments and flight test measurements. The main purpose of the paper is to assess the validity of the tables of aerodynamic data for the force and moment prediction of realistic aircraft manoeuvres. This is done by generating a manoeuvre based on the tables of aerodynamic data, and then replaying the motion through a time-accurate computational fluid dynamics calculation. The resulting forces and moments from these simulations were compared with predictions from the tables. As the latter are based on a set of steady-state predictions, the comparisons showed perfect agreement for slow manoeuvres. As manoeuvres became more aggressive some disagreement was seen, particularly during periods of large rates of change in attitudes. Finally, the Ranger 2000 model was used on a flight simulator.

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More information

Published date: July 2012
Keywords: flight dynamics, cfd, aircraft manoeuvre, manoeuvre
Organisations: Aerodynamics & Flight Mechanics Group

Identifiers

Local EPrints ID: 351517
URI: http://eprints.soton.ac.uk/id/eprint/351517
ISSN: 0376-0421
PURE UUID: f87d3f98-ceeb-4396-8305-f45a5831eea7
ORCID for A. Da Ronch: ORCID iD orcid.org/0000-0001-7428-6935

Catalogue record

Date deposited: 23 Apr 2013 12:35
Last modified: 15 Mar 2024 03:46

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Contributors

Author: D. Vallespin
Author: K. J. Badcock
Author: A. Da Ronch ORCID iD
Author: M. White
Author: P. Perfect
Author: M. Ghoreyshi

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