Contribution to Book
High Angle of Attack Helicopter Blade-Vortex Interaction; Numerical Studies Using LES
Proceedings of the Aerospace Sciences Meeting
(2011)
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.
Keywords
- High angle of attack,
- Helicopter,
- Blade-vortex,
- Numerical studies,
- LES
Disciplines
Publication Date
January 4, 2011
Publisher
American Institute of Aeronautics and Astronautics
ISBN
978-1-60086-950-1
DOI
10.2514/6.2011-55
Citation Information
Patricia Coronado, Carlos Velez, Marcel Ilie and Ge-Cheng Zha. "High Angle of Attack Helicopter Blade-Vortex Interaction; Numerical Studies Using LES" Orlando, FLProceedings of the Aerospace Sciences Meeting (2011) Available at: http://works.bepress.com/marcel-ilie/13/