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

Husam Al-Kuran, Patricia Coronado, Marcel Ilie, Ge Cheng 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 (US)
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

Publication series

Name20th AIAA Computational Fluid Dynamics Conference 2011

Other

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

ASJC Scopus subject areas

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

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