Prediction of transonic buffet around a wing with flap

Barbut, G., Braza, M., Hoarau, Y., Barakos, G. , Sévrain, A. and Vos, J.B. (2010) Prediction of transonic buffet around a wing with flap. In: Peng, S.-H., Doerffer, P. and Haase, W. (eds.) Progress in Hybrid RANS-LES Modelling. Series: Notes on numerical fluid mechanics and multidisciplinary design (111). Springer, pp. 191-204. ISBN 9783642141676 (doi: 10.1007/978-3-642-14168-3_16)

Abstract

The present study presents numerical simulations and turbulence modelling of the flow around a NACA0012 airfoil including a deflected aileron. The results are compared with experiments that have been performed in the N-3 wind tunnel of the Institute of Aviation (IoA), Warsaw. The experiment focused on unsteady flow characteristics and buffet phenomena arising as the result of the transonic shock wave / boundary layer interaction (SWBLI). The transonic buffet is a natural and self-sustaining oscillation of the shock wave and separated flow region, caused by pressure fluctuation. The first objective is to capture the transonic buffet unsteadiness by means of URANS and DES turbulence modelling approaches. Secondly, the periodic flap oscillation has been used to modify the oscillation amplitudes towards an outlook of attenuation of the transonic buffet.

• Item Type: Book Sections
• Additional Information: Papers Contributed to the 3rd Symposium on Hybrid RANS-LES Methods, Gdansk, Poland, June 2009.
• Status: Published
• Glasgow Author(s) Enlighten ID: Barakos, Professor George
• Authors: Barbut, G., Braza, M., Hoarau, Y., Barakos, G., Sévrain, A., and Vos, J.B.
• College/School: College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity
• Publisher: Springer
• ISSN: 1612-2909
• ISBN: 9783642141676