Vortex-induced Stall on an Actively Twisted Highly Loaded Model Rotor Blade

Wilke, G. A. et al. (2023) Vortex-induced Stall on an Actively Twisted Highly Loaded Model Rotor Blade. In: 23rd DGLR Symposium of STAB, Berlin, Germany, 9-10 Nov 2022, ISBN 9783031404818 (doi: 10.1007/978-3-031-40482-5_59)

Abstract

In preparation for a future wind tunnel test of a rotor with twist-actuated blades (STAR II), numerical predictions of this test have been carried out by the contributing partners. In this paper, the simulated results of the vortex-induced stall operating condition, synonymous with a highly loaded flight condition, are presented. The current conclusion is that a noticeable spread of the results is given when searching for the maximum attainable thrust, depending on the onset of stall once perceived by the individual simulation methodology. Some general trends among the simulations could still be identified with respect to the actuation settings that reduce vibrations and the required power. Generally, most CFD-based results allowed to capture this physical phenomenon, but carefully tuned low-fidelity aerodynamic tools also managed to capture the same trends at a fraction of the computational cost.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Barakos, Professor George
• Authors: Wilke, G. A., van der Wall, B. G., Tanabe, Y., Sugawara, H., Kim, D.-H., Kang, H. J., Jung, S. N., Hong, S. H., Bailly, J., Barakos, G., Steiniger, R., and Lim, J. W.
• College/School: College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity
• ISSN: 1612-2909
• ISBN: 9783031404818
• Copyright Holders: Copyright © 2024 The Author(s)
• First Published: First published in New Results in Numerical and Experimental Fluid Mechanics XIV 2023
• Publisher Policy: Reproduced in accordance with the publisher copyright policy

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