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Further Development of CAA Simulation for Isolated and Installed Nozzle Configurations

Neifeld, Andrej and Ewert, Roland (2018) Further Development of CAA Simulation for Isolated and Installed Nozzle Configurations. In: AeroStruct: Enable and Learn How to Integrate Flexibility in Design Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 138. Springer International Publishing. pp. 207-220. ISBN 978-3-319-72019-7. ISSN 1612-2909

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Abstract

A hybrid RANS/CAA approach with stochastic source modeling is used in this work for noise prediction. Previously, this methodology has been successfully applied to isolated configurations of jet and airframe with different source models. For the prediction of jet noise, the source model as proposed by Tam and Auriault has been used for isolated nozzle configurations. A modeling approach for isolated airframe noise configurations is relying on the vorticity based Lamb vector source model. The CAA simulation of installed configurations with the combination of jet and airframe requires however consideration of both noise generation mechanisms simultaneously. Thus, a vorticity based ‘Eddy Relaxation’ source model has been recently proposed as further development of this methodology, which is expected to capture the installation effect.

Item URL in elib:https://elib.dlr.de/118967/
Document Type:Contribution to a Collection
Title:Further Development of CAA Simulation for Isolated and Installed Nozzle Configurations
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Neifeld, AndrejAndrej.Neifeld (at) dlr.deUNSPECIFIED
Ewert, RolandRoland.Ewert (at) dlr.deUNSPECIFIED
Date:2018
Journal or Publication Title:AeroStruct: Enable and Learn How to Integrate Flexibility in Design
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:138
DOI :10.1007/978-3-319-72020-3_13
Page Range:pp. 207-220
Editors:
EditorsEmail
Heinrich, Ralfralf.heinrich@dlr.de
Publisher:Springer International Publishing
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
ISSN:1612-2909
ISBN:978-3-319-72019-7
Status:Published
Keywords:Jet Noise, Aeroacoustics, Stochastic Modelling, CAA Simulation
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 - Simulation and Validation
Location: Braunschweig
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Technical Acoustics
Deposited By: Neifeld, Dr.-Ing. Andrej
Deposited On:09 Mar 2018 10:05
Last Modified:09 Mar 2018 10:05

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