@inproceedings{77006edc84304fa39754b8be5e49c846,
title = "Reduction of helicopter BVI noise using active flow control; the case of vortex street interactions",
abstract = "A novel technique regarding the reduction of helicopter blade-vortex interaction noise is proposed. The proposed technique is based on the idea of injecting air at the leading edge of the blade to alter the vortex characteristics (strength and core size). The numerical investigations are performed using the large-eddy simulation (LES) approach. The simulations were performed for a Reynolds number, Re = 1.3 × 106, based on the NACA0012 airfoil chord and free-stream velocity. The present study shows that by injecting air at the leading edge of the blade, the influence of blade-vortex interaction on the aerodynamic coefficients and aeroacoustic noise is significantly reduced.",
author = "Patricia Coronado and Husam Al-Kuran and Marcel Ilie and David Duhamel and Youns Ouarit",
year = "2011",
doi = "10.2514/6.2011-3356",
language = "English",
isbn = "9781624101458",
series = "29th AIAA Applied Aerodynamics Conference 2011",
publisher = "American Institute of Aeronautics and Astronautics Inc.",
booktitle = "29th AIAA Applied Aerodynamics Conference 2011",
note = "29th AIAA Applied Aerodynamics Conference 2011 ; Conference date: 27-06-2011 Through 30-06-2011",
}