@inproceedings{ac7e4440af614ffeb378d6732002fd20,
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 x 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 = "Carlos Velez and Marcel Ilie",
year = "2012",
doi = "10.2514/6.2012-2141",
language = "English",
isbn = "9781600869327",
series = "18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference)",
publisher = "American Institute of Aeronautics and Astronautics Inc.",
booktitle = "18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference)",
note = "18th AIAA/CEAS Aeroacoustics Conference 2012 (33rd AIAA Aeroacoustics Conference) ; Conference date: 04-06-2012 Through 06-06-2012",
}