Assessment of the Harmonic Balance Method for Rotor Blade Performance Predictions

Fitzgibbon, T. A., Woodgate, M. A. and Barakos, G. N. (2019) Assessment of the Harmonic Balance Method for Rotor Blade Performance Predictions. In: 45th European Rotorcraft Forum, Warsaw, Poland, 17-20 Sep 2019,

191655.pdf - Accepted Version



This paper presents an assessment of the harmonic balance method for rotor blade performance predictions. The harmonic balance method within the HMB3 solver of Glasgow University has been extended to the use with overset grids, and results are presented for the PSP and AH-64A rotor blades in hover and forward flight. The predictions are compared with results from steady-state and time marching simulations. In particular, the harmonic balance method is assessed for capturing key flow features, such as the strength of the advancing blade shockwave and retreating side blade dynamic stall. The limitations of the method are also discussed. The findings show that the harmonic balance method is a promising alternative to time-marching simulations due to a significant reduction in computational costs, leading to the potential use of high-fidelity Navier-Stokes methods in optimisation studies.

Item Type:Conference Proceedings
Glasgow Author(s) Enlighten ID:Barakos, Professor George and Woodgate, Dr Mark and Fitzgibbon, Thomas
Authors: Fitzgibbon, T. A., Woodgate, M. A., and Barakos, G. N.
Subjects:T Technology > TL Motor vehicles. Aeronautics. Astronautics
College/School:College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity
Copyright Holders:Copyright © 2019 The Authors
First Published:First published in Proceedings of the 45th European Rotorcraft Forum
Publisher Policy:Reproduced in accordance with the publisher copyright policy
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