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Fast Non-Empiric Tonal Noise Prediction Model for Installed Propulsors

Franco, Andrea and Mößner, Michael and Ewert, Roland and Delfs, Jan Werner (2022) Fast Non-Empiric Tonal Noise Prediction Model for Installed Propulsors. In: 28th AIAA/CEAS Aeroacoustics Conference, 2022, pp. 1-16. 28th AIAA/CEAS Aeroacoustics Conference, 14-17 June 2022, Southampton, UK. doi: 10.2514/6.2022-2961. ISBN 978-162410664-4.

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Official URL: https://arc.aiaa.org/doi/10.2514/6.2022-2961

Abstract

The increasing demand for cuts in environmental pollution is driving aircraft manufacturers towards sustainable aviation concepts that integrate unconventional propulsion configurations on the airframe. To aid the design process of new aircraft, a reliable prediction of installed rotor noise emissions would be required. Therefore, in this work an advanced rotor noise prediction approach is presented, which was developed to be fast and physical-principles-based, in order to be able to represent current and possibly newly arising noise sources mechanisms in complex configurations. The tool-chain proposed relies on aerodynamic predictions based on Actuator Disc (AD) Reynolds Averaged Navier Stokes (RANS) computations that provide the background flow solution for the Computational Aeroacoustics (CAA) method, which considers Gaussian regularized line-source distributions of strengths defined from either the obtained AD surface loads solution, or tabulated aerodynamic data used in combination with a model based on Blade Element Momentum Theory (BEMT). In this work initial successful results are reported for simplified test cases, outlining future possible applications.

Item URL in elib:https://elib.dlr.de/189068/
Document Type:Conference or Workshop Item (Lecture)
Title:Fast Non-Empiric Tonal Noise Prediction Model for Installed Propulsors
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Franco, AndreaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mößner, MichaelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ewert, RolandUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Delfs, Jan WernerUNSPECIFIEDhttps://orcid.org/0000-0001-8893-1747UNSPECIFIED
Date:15 June 2022
Journal or Publication Title:28th AIAA/CEAS Aeroacoustics Conference, 2022
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
DOI:10.2514/6.2022-2961
Page Range:pp. 1-16
Editors:
EditorsEmailEditor's ORCID iDORCID Put Code
UNSPECIFIEDAIAAUNSPECIFIEDUNSPECIFIED
ISBN:978-162410664-4
Status:Published
Keywords:Aeroacoustics, Aerodynamic, Performance Aerodynamics, Aeronautical Engineering, Aeronautics, Computational Fluid Dynamics, Equations of Fluid Dynamics, Flow Regimes, Fluid Dynamics, Fluid Mechanics, Hydrodynamics, Numerical Analysis, Vortex Dynamics
Event Title:28th AIAA/CEAS Aeroacoustics Conference
Event Location:Southampton, UK
Event Type:international Conference
Event Dates:14-17 June 2022
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: Braunschweig
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Technical Acoustics
Deposited By: Franco, Andrea
Deposited On:04 Nov 2022 09:41
Last Modified:04 Nov 2022 09:41

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