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Overset DNS with Application to Sound Source Prediction

Akkermans, R.A.D. and Ewert, Roland and Moghadam, Mohsen and Dierke, Jürgen and Buchmann, Nadine (2015) Overset DNS with Application to Sound Source Prediction. In: Progress in Hybrid RANS-LES Modelling Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 130. Springer International Publishing. pp. 59-68. ISBN ISBN 978-3-319-15140-3. ISSN 1612-2909

Full text not available from this repository.

Official URL: http://link.springer.com/chapter/10.1007/978-3-319-15141-0_4?no-access=true#

Abstract

In this contribution, we present an application of a computational aeroacoustics code as a hybrid Zonal DNS tool. The extension of the Non-Linear Perturbation Equations (NLPE) with viscous terms is presented as well as information related to the numerical method. The applicability of the simulation tool is illustrated with two testcases, i.e., a 2D circular cylinder in a uniform flow at moderate Reynolds numbers and a 3D decaying flow initialised with Taylor-Green vortices. Both testcases provide results which match well with data reported in literature. The cylinder testcase verifies that the viscous terms are indeed correctly implemented (at least in 2D) and the Taylor-Green vortex case illustrates that the numerical scheme introduced minimal numerical dissipation.

Item URL in elib:https://elib.dlr.de/102452/
Document Type:Contribution to a Collection
Title:Overset DNS with Application to Sound Source Prediction
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Akkermans, R.A.D.rinie.akkermans (at) dlr.deUNSPECIFIED
Ewert, Rolandroland.ewert (at) dlr.deUNSPECIFIED
Moghadam, MohsenRWTH AachenUNSPECIFIED
Dierke, Jürgenjuergen.dierke (at) dlr.deUNSPECIFIED
Buchmann, NadineTU BraunschweigUNSPECIFIED
Date:21 February 2015
Journal or Publication Title:Progress in Hybrid RANS-LES Modelling
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:130
DOI :10.1007/978-3-319-15141-0_39
Page Range:pp. 59-68
Editors:
EditorsEmail
Girimaji, S.Aerospace Engineering Department, Texas A&M University
Haase, W.Aeronautics Consultants
Peng, S.-H.Div Information & Aeronautical Syst, Swedish Defence Research Agency FOI
Schwamborn, D.DLR
Publisher:Springer International Publishing
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
ISSN:1612-2909
ISBN:ISBN 978-3-319-15140-3
Status:Published
Keywords:Overset LES, Taylor-Green Vortex
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
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Technical Acoustics
Deposited By: Ewert, Dr.-Ing. Roland
Deposited On:10 Feb 2016 11:43
Last Modified:12 May 2016 12:24

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