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Installation Effects of a Propeller Mounted on a High-Lift Wing with a Coanda Flap. Part I: Aeroacoustic Experiments

Akkermans, Rinie, A.D. and Pott-Pollenske, Michael and Buchholz, Heino and Delfs, Jan and Almoneit, Daniela (2014) Installation Effects of a Propeller Mounted on a High-Lift Wing with a Coanda Flap. Part I: Aeroacoustic Experiments. AIAA. 20th AIAA/CEAS Aeroacoustics Conference, 16.-20. Juni 2014, Atlanta, USA. DOI: 10.2514/6.2014-3191

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Official URL: http://arc.aiaa.org/

Abstract

In this contribution, we present aeroacoustic experiments concerning installation effects of propellers. Such installation effects are important as they can significantly alter the sound radiation as compared to an isolated propeller. For this purpose, detailed experiments have been conducted in the NWB aeroacoustic wind tunnel in Braunschweig, Germany. The considered geometry is a nine-bladed propeller installed in front of a high-lift wing (employing a Coanda flap). The results illustrate the influence of propeller rotational speed, blade pitch angle, wind tunnel velocity, and angle of attack variations on the sound radiation. Furthermore, with a source localisation technique insight is gained in the dominant sound sources, and reveals the importance of periodic as well as broadband noise for the considered geometry.

Item URL in elib:https://elib.dlr.de/93476/
Document Type:Conference or Workshop Item (Speech)
Additional Information:AIAA Paper No. 2014-3191
Title:Installation Effects of a Propeller Mounted on a High-Lift Wing with a Coanda Flap. Part I: Aeroacoustic Experiments
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Akkermans, Rinie, A.D.r.akkermans (at) tu-braunschweig.deUNSPECIFIED
Pott-Pollenske, Michaelmichael.pott-pollenske (at) dlr.deUNSPECIFIED
Buchholz, Heinoheino.buchholz (at) dlr.deUNSPECIFIED
Delfs, Janjan.delfs (at) dlr.deUNSPECIFIED
Almoneit, Danieladaniela.almoneit (at) dlr.deUNSPECIFIED
Date:2014
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.2514/6.2014-3191
Publisher:AIAA
Status:Published
Keywords:acoustic installation effects, installed propeller noise
Event Title:20th AIAA/CEAS Aeroacoustics Conference
Event Location:Atlanta, USA
Event Type:international Conference
Event Dates:16.-20. Juni 2014
Organizer:American Institute of Aeronautics and Astronautics (AIAA)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics, L - Simulation and Validation
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Technical Acoustics
Deposited By: Delfs, Prof.Dr. Jan Werner
Deposited On:10 Dec 2014 15:38
Last Modified:31 Jul 2019 19:50

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