elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Effect of Higher Harmonic Control on Helicopter Rotor Blade-Vortex Interaction Noise: Prediction and Initial Validation

Beaumier, Philippe and Prieur, Jean and Spiegel, Pierre and Demargne, A. and Tung, Chee and Gallman, Judy M. and Yu, Yung H. and Kube, Roland and van der Wall, Berend G. and Schultz, Klaus J. and Splettstößer, Wolf R. and Brooks, Thomas F. and Burley, Casey L. and Boyd, Doug D. Jr. (1994) Effect of Higher Harmonic Control on Helicopter Rotor Blade-Vortex Interaction Noise: Prediction and Initial Validation. In: Aerodynamics and Aeroacoustics of Rotorcraft (552), pp. 26-1. 75th Fluid Dynamics Symposium, 1994-10-10 - 1994-10-13, Berlin, Germany.

Full text not available from this repository.

Abstract

The paper presents a status of theoretical tools of AFDD, DLR, NASA and ONERA for prediction of the effect of HHC on helicopter main rotor BVI noise. Aeroacoustic predictions from the four research centers, concerning a wind tunnel simulation of a typical descent flight case without and with HHC are presented and compared. The results include blade deformation, geometry of interacting vortices, sectional loads and noise. Acoustic predictions are compared to experimental data. An analysis of the results provides a first insight of the mechanisms by which HHC may affect BVI noise.

Item URL in elib:https://elib.dlr.de/20296/
Document Type:Conference or Workshop Item (Speech)
Title:Effect of Higher Harmonic Control on Helicopter Rotor Blade-Vortex Interaction Noise: Prediction and Initial Validation
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Beaumier, PhilippeONERAUNSPECIFIED
Prieur, JeanONERAUNSPECIFIED
Spiegel, PierreONERAUNSPECIFIED
Demargne, A.ONERAUNSPECIFIED
Tung, CheeAFDDUNSPECIFIED
Gallman, Judy M.AFDDUNSPECIFIED
Yu, Yung H.AFDDUNSPECIFIED
Kube, RolandUNSPECIFIEDUNSPECIFIED
van der Wall, Berend G.UNSPECIFIEDUNSPECIFIED
Schultz, Klaus J.UNSPECIFIEDUNSPECIFIED
Splettstößer, Wolf R.UNSPECIFIEDUNSPECIFIED
Brooks, Thomas F.NASAUNSPECIFIED
Burley, Casey L.NASAUNSPECIFIED
Boyd, Doug D. Jr.NASAUNSPECIFIED
Date:August 1994
Journal or Publication Title:Aerodynamics and Aeroacoustics of Rotorcraft
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 26-1
Series Name:AGARD Conference Proceedings (AGARD CP)
Status:Published
Keywords:HHC, BVI
Event Title:75th Fluid Dynamics Symposium
Event Location:Berlin, Germany
Event Type:international Conference
Event Dates:1994-10-10 - 1994-10-13
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft (old)
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Active Rotorcraft (old), L - The Quiet and Comfortable Rotorcraft (old)
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Rotorcraft
Institute of Aerodynamics and Flow Technology > Technical Acoustics
Deposited By: van der Wall, Prof. Dr. Berend G.
Deposited On:15 Dec 2005
Last Modified:08 May 2014 23:17

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.