High Angle of Attack Helicopter Blade-Vortex Interaction; Numerical Studies Using LES

Patricia Coronado; Carlos Velez; Marcel Ilie; Ge-Cheng Zha

doi:10.2514/6.2011-55

High Angle of Attack Helicopter Blade-Vortex Interaction; Numerical Studies Using LES

Patricia Coronado
, Carlos Velez
, Marcel Ilie
, Ge-Cheng Zha

Mechanical Engineering

Research output: Contribution to book or proceeding › Chapter

Abstract

The influence of angle of attack on the helicopter blade-vortex mechanism of interaction is investigated using large eddy simulation (LES). The LES technique provides a promising tool for obtaining the unsteady wall-pressure fields, aerodynamic coefficients and the acoustic source functions. A large eddy simulation is carried out for a two-dimensional Blade-Vortex Interaction (BVI) problem, for a chord based Reynolds number of 1.3x10^6. Computations are carried out to investigate the influence of angle of attack (α = 0^θ, α = 5^θ, α = 10^θ) on the aerodynamic coefficients and acoustic field.

Original language	American English
Title of host publication	Proceedings of the Aerospace Sciences Meeting
DOIs	https://doi.org/10.2514/6.2011-55
State	Published - Jan 4 2011

Disciplines

Mechanical Engineering

Keywords

Blade-vortex
Helicopter
High angle of attack
LES
Numerical studies

Access to Document

10.2514/6.2011-55License: Unspecified

Cite this

@inbook{fe4ac9ef1bf0438d84ea354e743a1690,

title = "High Angle of Attack Helicopter Blade-Vortex Interaction; Numerical Studies Using LES",

abstract = " The influence of angle of attack on the helicopter blade-vortex mechanism of interaction is investigated using large eddy simulation (LES). The LES technique provides a promising tool for obtaining the unsteady wall-pressure fields, aerodynamic coefficients and the acoustic source functions. A large eddy simulation is carried out for a two-dimensional Blade-Vortex Interaction (BVI) problem, for a chord based Reynolds number of 1.3x10\textasciicircum{}6. Computations are carried out to investigate the influence of angle of attack (α = 0\textasciicircum{}θ, α = 5\textasciicircum{}θ, α = 10\textasciicircum{}θ) on the aerodynamic coefficients and acoustic field.",

keywords = "Blade-vortex, Helicopter, High angle of attack, LES, Numerical studies",

author = "Patricia Coronado and Carlos Velez and Marcel Ilie and Ge-Cheng Zha",

year = "2011",

month = jan,

day = "4",

doi = "10.2514/6.2011-55",

language = "American English",

booktitle = "Proceedings of the Aerospace Sciences Meeting",

}

TY - CHAP

T1 - High Angle of Attack Helicopter Blade-Vortex Interaction; Numerical Studies Using LES

AU - Coronado, Patricia

AU - Velez, Carlos

AU - Ilie, Marcel

AU - Zha, Ge-Cheng

PY - 2011/1/4

Y1 - 2011/1/4

N2 - The influence of angle of attack on the helicopter blade-vortex mechanism of interaction is investigated using large eddy simulation (LES). The LES technique provides a promising tool for obtaining the unsteady wall-pressure fields, aerodynamic coefficients and the acoustic source functions. A large eddy simulation is carried out for a two-dimensional Blade-Vortex Interaction (BVI) problem, for a chord based Reynolds number of 1.3x10^6. Computations are carried out to investigate the influence of angle of attack (α = 0^θ, α = 5^θ, α = 10^θ) on the aerodynamic coefficients and acoustic field.

AB - The influence of angle of attack on the helicopter blade-vortex mechanism of interaction is investigated using large eddy simulation (LES). The LES technique provides a promising tool for obtaining the unsteady wall-pressure fields, aerodynamic coefficients and the acoustic source functions. A large eddy simulation is carried out for a two-dimensional Blade-Vortex Interaction (BVI) problem, for a chord based Reynolds number of 1.3x10^6. Computations are carried out to investigate the influence of angle of attack (α = 0^θ, α = 5^θ, α = 10^θ) on the aerodynamic coefficients and acoustic field.

KW - Blade-vortex

KW - Helicopter

KW - High angle of attack

KW - LES

KW - Numerical studies

UR - https://doi.org/10.2514/6.2011-55

U2 - 10.2514/6.2011-55

DO - 10.2514/6.2011-55

M3 - Chapter

BT - Proceedings of the Aerospace Sciences Meeting

ER -

High Angle of Attack Helicopter Blade-Vortex Interaction; Numerical Studies Using LES

Abstract

Disciplines

Keywords

Access to Document

Other files and links

Fingerprint

Cite this