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. © 2011 by Marcel Ilie.
Publication Date
1-1-2011
Publication Title
29th AIAA Applied Aerodynamics Conference 2011
Number of Pages
-
Document Type
Article; Proceedings Paper
Personal Identifier
scopus
DOI Link
https://doi.org/10.2514/6.2011-3356
Copyright Status
Unknown
Socpus ID
85067320547 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/85067320547
STARS Citation
Coronado, Patricia; Al-Kuran, Husam; Ilie, Marcel; Duhamel, David; and Ouarit, Youns, "Reduction Of Helicopter Bvi Noise Using Active Flow Control; The Case Of Vortex Street Interactions" (2011). Scopus Export 2010-2014. 3107.
https://stars.library.ucf.edu/scopus2010/3107