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Model order reduction for steady aerodynamics of high-lift configurations

Vendl, Alexander and Faßbender, Heike and Görtz, Stefan and Zimmermann, Ralf and Mifsud, Michael (2014) Model order reduction for steady aerodynamics of high-lift configurations. CEAS Aeronautical Journal, 5 (4), pp. 487-500. Springer. DOI: 10.1007/s13272-014-0116-1 ISSN 1869-5590

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1007/s13272-014-0116-1

Abstract

In aerodynamic applications, many model reduction methods use proper orthogonal decomposition (POD). In this work, a POD-based method, called missing point estimation (MPE), is modified and applied to steady-state flows with variation of the angle of attack. The main idea of MPE is to select a subset of the computational grid points (control volumes) and to limit the governing equations to this subset. Subsequently, the limited equations are projected onto the POD subspace. This approach has the advantage that the nonlinear right-hand side of the governing equations has to be evaluated only for a small number of points (control volumes) in contrast to POD, for which the full right-hand side has to be evaluated. An error estimation for MPE in the continuous ODE setting is tackled. Numerical results are presented for the Navier–Stokes equations for two different industrially relevant, two-element high-lift airfoils, one which is normally adopted during landing and the other during take-off.

Item URL in elib:https://elib.dlr.de/92832/
Document Type:Article
Title:Model order reduction for steady aerodynamics of high-lift configurations
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Vendl, AlexanderUNSPECIFIEDUNSPECIFIED
Faßbender, HeikeUNSPECIFIEDUNSPECIFIED
Görtz, StefanStefan.Goertz (at) dlr.deUNSPECIFIED
Zimmermann, Ralfralf.zimmermann (at) dlr.deUNSPECIFIED
Mifsud, MichaelMichael.Mifsud (at) dlr.deUNSPECIFIED
Date:December 2014
Journal or Publication Title:CEAS Aeronautical Journal
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:5
DOI :10.1007/s13272-014-0116-1
Page Range:pp. 487-500
Publisher:Springer
ISSN:1869-5590
Status:Published
Keywords:reduced order modeling (ROM), POD, CFD, missing point estimation (MPE), TAU
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 of Aerodynamics and Flow Technology > C²A²S²E - Center for Computer Applications in AeroSpace Science and Engineering
Deposited By: Görtz, Stefan
Deposited On:01 Dec 2014 09:50
Last Modified:29 Jun 2015 03:04

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