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Knopp, Tobias und Zhang, Xiaoqin und Lube, Gert (2010) Assessment of resolution quality for LES. EUROMECH 504 Large Eddy Simulation for Aerodynamics and Aeroacoustics, 2009-03-23 - 2009-03-25, Muenchen; Germany.
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Kurzfassung
We attempt to assess the resolution quality of Large-Eddy Simulation (LES) using single-grid estimators. We perform a study of LES on successively refined meshes for turbulent channel flow at Re_tau=4800 and for flow over a backward-facing step at Re_h=37500. Refinement indicators (or sensors) based on (i) resolved turbulent kinetic energy and (ii) resolved turbulent shear stress are evaluated. LES on successively refined meshes shows a clear trend of ''convergence'' for mean and fluctuation velocity profiles and that the quality of spatial resolution can be assessed by these two sensors for attached boundary layers and for free-shear layers.
| elib-URL des Eintrags: | https://elib.dlr.de/67116/ | ||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||
| Titel: | Assessment of resolution quality for LES | ||||||||||||||||
| Autoren: |
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| Datum: | 2010 | ||||||||||||||||
| Referierte Publikation: | Nein | ||||||||||||||||
| Open Access: | Ja | ||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||
| Stichwörter: | Large-eddy simulation; channel flow; backward facing step; wall-functions; grid convergence study | ||||||||||||||||
| Veranstaltungstitel: | EUROMECH 504 Large Eddy Simulation for Aerodynamics and Aeroacoustics | ||||||||||||||||
| Veranstaltungsort: | Muenchen; Germany | ||||||||||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||||||||||
| Veranstaltungsbeginn: | 23 März 2009 | ||||||||||||||||
| Veranstaltungsende: | 25 März 2009 | ||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||
| HGF - Programm: | Luftfahrt | ||||||||||||||||
| HGF - Programmthema: | Starrflügler (alt) | ||||||||||||||||
| DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||
| DLR - Forschungsgebiet: | L AR - Starrflüglerforschung | ||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | L - Konzepte & Integration (alt) | ||||||||||||||||
| Standort: | Göttingen | ||||||||||||||||
| Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > CASE | ||||||||||||||||
| Hinterlegt von: | Knopp, Dr.rer.nat. Tobias | ||||||||||||||||
| Hinterlegt am: | 21 Dez 2010 15:09 | ||||||||||||||||
| Letzte Änderung: | 24 Apr 2024 19:32 |
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