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

A Semi-empirical Approach to Simulate the Effects of Higher Harmonic Rotor Blade Control Using Prescribed Wake

van der Wall, Berend G. and Yin, Jianping (2013) A Semi-empirical Approach to Simulate the Effects of Higher Harmonic Rotor Blade Control Using Prescribed Wake. Advances in Applied Acoustics, 2 (2), pp. 45-60. Science and Engineering Publishing Company, USA. ISSN 2325-7024

Full text not available from this repository.

Official URL: http://www.aiaa-journal.org

Abstract

To account for the effect of higher harmonic rotor blade control (HHC) on the wake geometry and hence on blade-vortex interaction (BVI) locations free-wake methods are regularly used within comprehensive rotor simulation environments. Prescribed wake formulations are much faster than free-wake codes, but require á priori information of the induced velocity field within the rotor disk to account for wake perturbations. In this paper a semi-empirical approach to account for the effects of HHC on the prescribed wake geometry is described and validated against data from the 2nd HHC Aeroacoustic Rotor Test (HART II). This covers the computation of the global induced velocity perturbations due to HHC from the blade loading time histories, the computation of the wake geometry perturbations due to these (both is performed within DLR’s high resolution comprehensive rotor code S4), and finally the noise radiation using DLR’s acoustic code APSIM. The results have first been presented at the American Helicopter Society 65th Annual Forum, Grapevine, Texas, May 27-29, 2009.

Item URL in elib:https://elib.dlr.de/81256/
Document Type:Article
Title:A Semi-empirical Approach to Simulate the Effects of Higher Harmonic Rotor Blade Control Using Prescribed Wake
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
van der Wall, Berend G.FT-HUBUNSPECIFIED
Yin, JianpingASUNSPECIFIED
Date:May 2013
Journal or Publication Title:Advances in Applied Acoustics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:No
In ISI Web of Science:No
Volume:2
Page Range:pp. 45-60
Publisher:Science and Engineering Publishing Company, USA
ISSN:2325-7024
Status:Published
Keywords:Helicopter Rotor Acoustics; HART II; HHC; Prescribed Wake
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 Innovative Rotorcraft (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Helicopters
Institute of Flight Systems > Rotorcraft
Deposited By: van der Wall, Prof. Dr. Berend G.
Deposited On:14 May 2013 14:38
Last Modified:15 Jun 2013 03:02

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.