Petrocchi, A. and Barakos, G. N. (2023) Modelling of Transonic Buffet Alleviation via Spoilers. In: 2023 AIAA Aviation Forum, San Diego, CA, USA, 12-16 Jun 2023, AIAA 2023-3527. ISBN 9781624107047 (doi: 10.2514/6.2023-3527)
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Abstract
In this work, computational fluid dynamics simulations are carried out to assess the ability of spoilers to alleviate transonic buffet. Spoilers are present on every commercial aircraft and can be used as shock and boundary-layer control devices. The difficulties to model slotted and deployable control surfaces have been overcome by adapting a formulation developped for modelling swinging Gurney flaps to wing spoilers. By adopting virtual spoilers, the separated region formed during buffet is divided. The shock is fixed to an upstream position, and the oscillations are stopped, or alleviated. The effectiveness of this buffet control method is first assessed using 2D computations around aerofoils with different sections and at different flow conditions. The sensitivity to the spoiler deployment angle is studied, and the optimum value based on the aerodynamic performance is determined. Then, computations on an OAT15A unswept wing are carried out to investigate the effect of the spoiler on the 3D buffet dynamics and flow topology.
| Item Type: | Conference Proceedings |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Barakos, Professor George and Petrocchi, Mr Andrea |
| Authors: | Petrocchi, A., and Barakos, G. N. |
| College/School: | College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity |
| ISBN: | 9781624107047 |
| Copyright Holders: | Copyright © 2023 Andrea Petrocchi and George Barakos |
| First Published: | First published in 2023 AIAA Aviation Forum: AIAA 2023-03527 |
| Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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