High angle of attack helicopter blade-vortex interaction; numerical studies using LES

Husam Al-Kuran, Patricia Coronado, Marcel Ilie, GeCheng Zha

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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 1.3x106. Computations are carried out to investigate the influence of angle of attack (α = 0θ, α = 5θ, α = 10θ) on the aerodynamic coefficients and acoustic field.

Original languageEnglish
Title of host publication20th AIAA Computational Fluid Dynamics Conference 2011
StatePublished - Dec 1 2011
Event20th AIAA Computational Fluid Dynamics Conference 2011 - Honolulu, HI, United States
Duration: Jun 27 2011Jun 30 2011

Other

Other20th AIAA Computational Fluid Dynamics Conference 2011
CountryUnited States
CityHonolulu, HI
Period6/27/116/30/11

Fingerprint

Large eddy simulation
Angle of attack
Helicopters
Vortex flow
Aerodynamics
Acoustic fields
Reynolds number
Acoustics

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Energy Engineering and Power Technology
  • Aerospace Engineering
  • Mechanical Engineering

Cite this

Al-Kuran, H., Coronado, P., Ilie, M., & Zha, G. (2011). High angle of attack helicopter blade-vortex interaction; numerical studies using LES. In 20th AIAA Computational Fluid Dynamics Conference 2011

High angle of attack helicopter blade-vortex interaction; numerical studies using LES. / Al-Kuran, Husam; Coronado, Patricia; Ilie, Marcel; Zha, GeCheng.

20th AIAA Computational Fluid Dynamics Conference 2011. 2011.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Al-Kuran, H, Coronado, P, Ilie, M & Zha, G 2011, High angle of attack helicopter blade-vortex interaction; numerical studies using LES. in 20th AIAA Computational Fluid Dynamics Conference 2011. 20th AIAA Computational Fluid Dynamics Conference 2011, Honolulu, HI, United States, 6/27/11.
Al-Kuran H, Coronado P, Ilie M, Zha G. High angle of attack helicopter blade-vortex interaction; numerical studies using LES. In 20th AIAA Computational Fluid Dynamics Conference 2011. 2011
Al-Kuran, Husam ; Coronado, Patricia ; Ilie, Marcel ; Zha, GeCheng. / High angle of attack helicopter blade-vortex interaction; numerical studies using LES. 20th AIAA Computational Fluid Dynamics Conference 2011. 2011.
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