Numerical analysis of aerodynamic characteristics of iced rotor in forward flight

Chen, X., Zhao, Q. and Barakos, G. (2019) Numerical analysis of aerodynamic characteristics of iced rotor in forward flight. AIAA Journal, 57(4), pp. 1523-1537. (doi:10.2514/1.J057399)

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Abstract

Based on a 3-D rotor icing model and the CLORNS code, aerodynamic characteristics of iced rotors in forward flight are calculated and analyzed. At first, ice accretion on the UH-1H rotor in hover, and ice accretion on the SRB rotor in forward flight are calculated. The results are used to validate the employed numerical simulation method through comparisons with experimental data. Then, the degradation of the aerodynamic characteristics of the iced SRB rotor is analyzed, and the variation of the pressure coefficients on the rotor blades is discussed in detail. Finally, parameters, such as the icing time, the temperature, and the icing position, are quantified, and conclusions are obtained. The influence of the ice accretion on the sectional aerodynamic characteristics increases along the spanwise direction, and deicing near the 0.7R blade section should be preferred at the beginning of the ice accretion. Finally, it is concluded that ice will not be removed in time if the deicer is activated based solely on the variation of the rotor aerodynamics.

Item Type:Articles
Additional Information:This study was co-supported by the National Natural Science Foundation of China (Nos. 11272150 and 11572156).
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Barakos, Professor George
Authors: Chen, X., Zhao, Q., and Barakos, G.
College/School:College of Science and Engineering > School of Engineering > Aerospace Sciences
Journal Name:AIAA Journal
Publisher:American Institute of Aeronautics and Astronautics, Inc.
ISSN:0001-1452
ISSN (Online):1533-385X
Published Online:07 December 2018
Copyright Holders:Copyright © 2018 The Authors
First Published:First published in AIAA Journal 57(4):1523-1537
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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