"Rotorcraft Blade-Vortex Street Interactions: Critical Aerodynamic Aspects" by Patricia Coronado

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Rotorcraft Blade-Vortex Street Interactions: Critical Aerodynamic Aspects

Proceedings of the Aerospace Sciences Meeting (2013)

Patricia Coronado, University of Central Florida
Carlos Velez, University of Central Florida
Marcel Ilie, Georgia Southern University

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Abstract

Numerical investigations of helicopter blade-vortex mechanism of interaction are performed using large eddy simulation (LES). The simulations were performed for a Reynolds number, Re=1.3x10^6, based on the chord, c, of the airfoil (NACA0012). Computations are carried out for two different types of blade-vortex interactions, concerning single and respectively two vortices blade interaction. It was observed that for single vortex-blade interaction, the blade-vortex interaction becomes less significant with the increase of vertical miss distance. Larger amplitudes of aerodynamic coefficients were observed for the case of two vortices-blade interaction when compared with the single vortex blade interactions.

Keywords

Rotorcraft,
Blade-vortex,
Street interactions,
Critical aerodynamic aspects

Disciplines

Mechanical Engineering

Publication Date

January 7, 2013

Publisher

American Institute of Aeronautics and Astronautics

ISBN

978-1-62410-181-6

DOI

10.2514/6.2013-805

Citation Information

Patricia Coronado, Carlos Velez and Marcel Ilie. "Rotorcraft Blade-Vortex Street Interactions: Critical Aerodynamic Aspects" Grapevine, TXProceedings of the Aerospace Sciences Meeting (2013)
Available at: http://works.bepress.com/marcel-ilie/8/