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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 Aviation 2020 Forum. AVIATION 2020, Reno, Nevada (online Veranstalltung). doi: 10.2514/6.2020-2581. ISBN 978-162410598-2.

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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
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Kolb, AlexanderAirbus Defence and SpaceUNSPECIFIEDUNSPECIFIED
Mancini, SimoneAirbus Defence and SpaceUNSPECIFIEDUNSPECIFIED
Journal or Publication Title:AIAA Aviation 2020 Forum
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
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:10 Aug 2023 07:42

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