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Reuß, Silvia and Knopp, Tobias and Probst, Axel and Orlt, Matthias (2014) Assessment of Local LES-Resolution Sensors for Hybrid RANS/LES Simulations. 5th Symposium on Hybrid RANS-LES Methods, 19. - 21. March 2014, College Station, Texas, USA.
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Official URL: http://mwikicfd.mace.manchester.ac.uk/hrlm/
Abstract
Different sensors that provide a measure for the resolution of the LES content in hybrid RANS/LES computations are proposed and investigated. In an apriori test on isotropic turbulence a suitable sensor is identified. Based on that sensor an automatic local mesh refinement is performed for an IDDES of the flow over a backward facing step. The results obtained on locally adapted grids are compared to results on globally refined grids. It is shown, that the proposed sensors can detect underresolved LES regions and that the local mesh refinement can help to reduce resolution errors caused by a too coarse grid spacing.
| Item URL in elib: | https://elib.dlr.de/89151/ | |||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | |||||||||||||||
| Additional Information: | The paper will appear in Numerical Notes in Fluid Mechanics and Multidisciplinary Optimisation (NNFM). | |||||||||||||||
| Title: | Assessment of Local LES-Resolution Sensors for Hybrid RANS/LES Simulations | |||||||||||||||
| Authors: |
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| Date: | 2014 | |||||||||||||||
| Refereed publication: | Yes | |||||||||||||||
| Open Access: | No | |||||||||||||||
| Gold Open Access: | No | |||||||||||||||
| In SCOPUS: | No | |||||||||||||||
| In ISI Web of Science: | No | |||||||||||||||
| Page Range: | pp. 1-10 | |||||||||||||||
| Series Name: | Session 3 | |||||||||||||||
| Status: | Published | |||||||||||||||
| Keywords: | Mesh resolution, hybrid RANS/LES, TAU, IDDES, Adaptation | |||||||||||||||
| Event Title: | 5th Symposium on Hybrid RANS-LES Methods | |||||||||||||||
| Event Location: | College Station, Texas, USA | |||||||||||||||
| Event Type: | international Conference | |||||||||||||||
| Event Dates: | 19. - 21. March 2014 | |||||||||||||||
| 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: | Micknaus, Ilka | |||||||||||||||
| Deposited On: | 20 May 2014 13:21 | |||||||||||||||
| Last Modified: | 29 Mar 2023 00:19 |
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