Moving mesh CFD-CSD aeroservoelastic modelling of BACT wing with autonomous flap control

N. V. Taylor*, C. B. Allen, A. Gaitonde, D. P. Jones, C. L. Fenwick, G. F J Hill, V. Lee

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

Abstract

Initial results produced by aeroservoelastic simulations of the BACT (Benchmark Active Control Technology) wing are presented. This is a low aspect ratio wing with large trailing edge flap. A fully time-synchronised aeroelastic simulation tool has previously been developed at the University of Bristol, by coupling a 3D central-difference, finite-volume, muliblock structured, unsteady CFD code with a linear computational structural dynamics code, in the time-domain. This has recently been extended to account for control surface representation and flight control system integration, and various aspects of aeroservoelastic simulation have been analysed. All control surface motion is driven through control laws acting on the structure, allowing both commanded and un-commanded deflections and distortions in the body modelled. The simulated response of the BACT wing and mount to aerodynamic perturbations and flap angle demands are presented, and a number of key issues relating to the modelling of surface motion are identified, the most significant of which being the need for consideration of structural and aerodynamic grid behaviour at hinge lines.

Original languageEnglish
Pages (from-to)484-496
Number of pages13
JournalCollection of Technical Papers - 23rd AIAA Applied Aerodynamics Conference
Volume1
Publication statusPublished - 19 Dec 2005

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