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Prediction of BVI Noise Radiation Variation due to HHC Using Advanced Prescribed Wake Methodology

van der Wall, Berend G. and Yin, Jianping (2012) Prediction of BVI Noise Radiation Variation due to HHC Using Advanced Prescribed Wake Methodology. 38th European Rotorcraft Forum, 4.-7. Sept. 2012, Amsterdam, The Netherlands.

Full text not available from this repository.

Abstract

DLR’s comprehensive isolated rotor code S4 is validated with a variety of wind tunnel experimental data from the HART II test of 2001 (Bo105 hingeless Mach-scaled model rotor) at low speed with and without higher harmonic control (HHC) using 3/rev control frequency in descending flight, known to generate strong BVI. To evaluate noise radiation, a coupled S4 and an analytic far field prediction method based on an integral Ffowcs-Williams and Hawkings approach are conducted. Overall, the quality of elasto-mechanical computations, aerodynamic section loads prediction, simulation of the wake geometry and the noise radiation is predicted to a good accuracy, validating the approach of reduced order modeling.

Item URL in elib:https://elib.dlr.de/75321/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Prediction of BVI Noise Radiation Variation due to HHC Using Advanced Prescribed Wake Methodology
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
van der Wall, Berend G.FT-HSUNSPECIFIED
Yin, JianpingAS-HEUNSPECIFIED
Date:September 2012
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-16
Status:Published
Keywords:code validation, HART, HHC, prescribed wake, BVI
Event Title:38th European Rotorcraft Forum
Event Location:Amsterdam, The Netherlands
Event Type:international Conference
Event Dates:4.-7. Sept. 2012
Organizer:Nederlandse Vereniging voor Luchtvaarttechniek (NVVL), CEAS
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 14:16
Last Modified:14 May 2013 14:49

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