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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. doi: 10.1007/978-3-642-35680-3_48. 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/ | ||||||||||||||||||
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| Document Type: | Contribution to a Collection | ||||||||||||||||||
| Title: | Grid-Induced Uncertainties in Wake Regions and a Local Refinement Method for Hexahedral Layers | ||||||||||||||||||
| Authors: |
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| 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: |
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| 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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