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Flap Side-Edge Noise Simulation Using RANS-based Source Modelling

Kolb, Alexander and Mancini, Simone and Rossignol, Karl-Stephane and Ewert, Roland (2020) Flap Side-Edge Noise Simulation Using RANS-based Source Modelling. In: AIAA/CEAS 26th aeroacoustics conference. AVIATION 2020, Reno, Nevada (online Veranstalltung).

Full text not available from this repository.

Abstract

Airframe noise significantly contributes to the overall noise annoyance on community during near-airport aircraft operations. Nonetheless, this noise source is increasing is relevance because of the concomitant reduction of engine noise. Flap side-edge noise has been recognized as a significant source of noise at approach. In this study, numerical simulations have been performed in order to compute the noise generated and radiated from an isolated flap-side edge. The capability of a stochastic noise source model based on Fast Random Particle Mesh method is explored. Numerical propagation is performed using acoustic perturbations equations and the vorticity source model. The numerical results are compared to semi-empirical noise source modelling and wind tunnel tests. Velocity and angle of attack noise scaling are evaluated. It is shown that the main trend of flap-side edge noise can be reproduced using RANS-based source modelling

Item URL in elib:https://elib.dlr.de/137695/
Document Type:Conference or Workshop Item (Speech)
Title:Flap Side-Edge Noise Simulation Using RANS-based Source Modelling
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Kolb, AlexanderAirbus Defence and SpaceUNSPECIFIED
Mancini, SimoneAirbus Defence and SpaceUNSPECIFIED
Rossignol, Karl-StephaneKarl-Stephane.Rossignol (at) dlr.deUNSPECIFIED
Ewert, RolandRoland.Ewert (at) dlr.deUNSPECIFIED
Date:2020
Journal or Publication Title:AIAA/CEAS 26th aeroacoustics conference
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Flap side edge noise, CAA Simulations, CAA, FRPM
Event Title:AVIATION 2020
Event Location:Reno, Nevada (online Veranstalltung)
Event Type:international Conference
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 (old)
Location: Braunschweig
Institutes and Institutions:Institute for Aerodynamics and Flow Technology
Institute for Aerodynamics and Flow Technology > Technical Acoustics
Deposited By: Rossignol, Karl-Stephane
Deposited On:19 Nov 2020 07:28
Last Modified:19 Nov 2020 07:28

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