Aerodynamic Aspects of Helicopter Blade-Vortex Interaction: The Interaction with Vortex Streets Considering the Icing Effect

Carlos Velez; Marcel Ilie

doi:10.2514/6.2013-243

Aerodynamic Aspects of Helicopter Blade-Vortex Interaction: The Interaction with Vortex Streets Considering the Icing Effect

Carlos Velez, Marcel Ilie

Mechanical Engineering

University of Central Florida

Research output: Contribution to book or proceeding › Chapter

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=1.3^6, 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.

Original language	American English
Title of host publication	Proceedings of the Aerospace Sciences Meeting
DOIs	https://doi.org/10.2514/6.2013-243
State	Published - Jan 7 2013

Disciplines

Mechanical Engineering

Keywords

Aerodynamic aspects
Helicopter blade-vortex
Icing effect
Interaction
Vortex streets

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title = "Aerodynamic Aspects of Helicopter Blade-Vortex Interaction: The Interaction with Vortex Streets Considering the Icing Effect",

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=1.3^6, 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 = "Aerodynamic aspects, Helicopter blade-vortex, Icing effect, Interaction, Vortex streets",

author = "Carlos Velez and Marcel Ilie",

year = "2013",

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doi = "10.2514/6.2013-243",

language = "American English",

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AU - Velez, Carlos

AU - Ilie, Marcel

PY - 2013/1/7

Y1 - 2013/1/7

N2 - 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=1.3^6, 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.

AB - 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=1.3^6, 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.

KW - Aerodynamic aspects

KW - Helicopter blade-vortex

KW - Icing effect

KW - Interaction

KW - Vortex streets

UR - https://doi.org/10.2514/6.2013-243

U2 - 10.2514/6.2013-243

DO - 10.2514/6.2013-243

M3 - Chapter

BT - Proceedings of the Aerospace Sciences Meeting

ER -

Aerodynamic Aspects of Helicopter Blade-Vortex Interaction: The Interaction with Vortex Streets Considering the Icing Effect

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