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Grid-Induced Uncertainties in Wake Regions and a Local Refinement Method for Hexahedral Layers

Mazlum, Ekrem and Probst, Axel and Radespiel, Rolf (2013) Grid-Induced Uncertainties in Wake Regions and a Local Refinement Method for Hexahedral Layers. In: New Results in Numerical Experimental Fluid Mechanics VIII Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 121. Springer Verlag, Heidelberg New York Dordrecht London. pp. 403-410. ISBN 978-3-642-35679-7. ISSN 1612-2909

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Official URL: http://link.springer.com/chapter/10.1007/978-3-642-35680-3_48

Abstract

In the present work, topology induced uncertainties on grids for finite volume methods with the focus on the wake region are investigated. Analysis shows, that the grid resolution in the wake region has a notable influence on the flow solution and thus on the aerodynamic coefficients. To allow a local adaptation of hexahedral grid parts for the DLR–TAU–Code, a refinement method for hexahedra is presented here. In 2D, the method is applied to the wake of the low–speed NLF(0)–416 airfoil, whereas in 3D it is applied to the high–speed wing ONERA–M6 as well as a low–speed flow–through nacelle. In all presented test cases, a notable effect of the local adaptation is observed.

Item URL in elib:https://elib.dlr.de/81803/
Document Type:Contribution to a Collection
Title:Grid-Induced Uncertainties in Wake Regions and a Local Refinement Method for Hexahedral Layers
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Mazlum, EkremTU BraunschweigUNSPECIFIED
Probst, Axelaxel.probst (at) dlr.deUNSPECIFIED
Radespiel, RolfTU BraunschweigUNSPECIFIED
Date:2013
Journal or Publication Title:New Results in Numerical Experimental Fluid Mechanics VIII
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:121
DOI :10.1007/978-3-642-35680-3_48
Page Range:pp. 403-410
Editors:
EditorsEmail
Dillmann, AndreasDLR
Heller, GerdAirbus Deutschland, Bremen, Germany
Kreplin, Hans-PeterDLR
Nitsche, WolfgangTU Berlin, Berlin, Germany
Peltzer, InkenBeechcraft Berlin aviation GmbH, Schönefeld, Germany
Publisher:Springer Verlag, Heidelberg New York Dordrecht London
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
ISSN:1612-2909
ISBN:978-3-642-35679-7
Status:Published
Keywords:uncertainties, grid refinement, wake, nacelle
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation & Validation (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > C²A²S²E - Center for Computer Applications in AeroSpace Science and Engineering
Deposited By: Probst, Axel
Deposited On:16 Apr 2013 15:28
Last Modified:27 Apr 2015 11:25

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