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

Porous flap trailing edges for the reduction of jet-flap interaction noise

Jente, Christian (2022) Porous flap trailing edges for the reduction of jet-flap interaction noise. ENODISE/DJINN/INVENTOR Public Workshop "Advanced Porous Treatment, liners and metamaterials for engine and airframe noise mitigation", 07. Nov. 2022, Aachen, Deutschland.

[img] PDF
3MB

Abstract

This presentation defines jet-flap interaction in terms of a general problem statement, geometry, aerodynamics and acoustic effects. The jet-flap interaction noise delta defines the noise reduction potential. Noise reduction is achieved with the help of a porous flap with and without cover mesh. The noise reduction performance is shown for jet speeds between Mj=0.45 and 0.76, for the full spectrum as well as its decomposition into broadband-like and tonal parts. The additional cover mesh shows an exceptional performance and is recommended for future use.

Item URL in elib:https://elib.dlr.de/189783/
Document Type:Conference or Workshop Item (Speech)
Title:Porous flap trailing edges for the reduction of jet-flap interaction noise
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Jente, ChristianUNSPECIFIEDhttps://orcid.org/0000-0001-6115-3084UNSPECIFIED
Date:7 November 2022
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-21
Status:Published
Keywords:Jet-flap interaction noise reduction porous materials
Event Title:ENODISE/DJINN/INVENTOR Public Workshop "Advanced Porous Treatment, liners and metamaterials for engine and airframe noise mitigation"
Event Location:Aachen, Deutschland
Event Type:Workshop
Event Dates:07. Nov. 2022
Organizer:RWTH Aachen
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Efficient Vehicle
DLR - Research area:Aeronautics
DLR - Program:L EV - Efficient Vehicle
DLR - Research theme (Project):L - Aircraft Technologies and Integration
Location: Berlin-Charlottenburg , Braunschweig
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Technical Acoustics
Institute of Propulsion Technology > Engine Acoustic
Deposited By: Jente, Christian
Deposited On:11 Nov 2022 11:13
Last Modified:11 Nov 2022 11:13

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Website and database design: Copyright © German Aerospace Center (DLR). All rights reserved.