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François, Daniela Gisele und Radespiel, Rolf und Probst, Axel (2015) Forced synthetic turbulence approach to stimulate resolved turbulence generation in embedded LES. In: Progress in Hybrid RANS-LES Modelling Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 130. Springer International Publishing. Seiten 81-92. doi: 10.1007/978-3-319-15141-0_6. ISBN 978-3-319-15140-3. ISSN 1612-2909.
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Offizielle URL: http://link.springer.com/chapter/10.1007/978-3-319-15141-0_6
Kurzfassung
A synthetic turbulence generator is implemented in the DLR TAU-Code, to reduce the grey area that is typical for embedded LES approaches. The selected synthetic turbulence generator builds up a velocity field of fluctuations that reproduces the anisotropy and non-homogeneity of the boundary layer taken as reference from the RANS solution. In addition, the generator is significantly improved in order to reduce the numerical divergence of the generated velocity field and also to provide convective motion of the synthetic eddies. The implementation was tested in a flat plate boundary layer and verified against experimental data for the HGR-01 airfoil. The results show that the implementation shortens the transition distance to fully developed turbulence. The obtained flow profiles for the HGR-01 airfoil compare nicely to available PIV data.
| elib-URL des Eintrags: | https://elib.dlr.de/96151/ | ||||||||||||||||||||
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| Dokumentart: | Beitrag im Sammelband | ||||||||||||||||||||
| Zusätzliche Informationen: | Book Subtitle: Papers Contributed to the 5th Symposium on Hybrid RANS-LES Methods, 19-21 March 2014, College Station, A&M University, Texas, USA, Book Part: II, Online ISBN: 978-3-319-15141-0 | ||||||||||||||||||||
| Titel: | Forced synthetic turbulence approach to stimulate resolved turbulence generation in embedded LES | ||||||||||||||||||||
| Autoren: |
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| Datum: | 2015 | ||||||||||||||||||||
| Erschienen in: | Progress in Hybrid RANS-LES Modelling | ||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||
| Band: | 130 | ||||||||||||||||||||
| DOI: | 10.1007/978-3-319-15141-0_6 | ||||||||||||||||||||
| Seitenbereich: | Seiten 81-92 | ||||||||||||||||||||
| Herausgeber: |
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| Verlag: | Springer International Publishing | ||||||||||||||||||||
| Name der Reihe: | Notes on Numerical Fluid Mechanics and Multidisciplinary Design | ||||||||||||||||||||
| ISSN: | 1612-2909 | ||||||||||||||||||||
| ISBN: | 978-3-319-15140-3 | ||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||
| Stichwörter: | synthetic turbulence, embedded LES, DLR-TAU code, HGR-01 airfoil | ||||||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||
| HGF - Programm: | Luftfahrt | ||||||||||||||||||||
| HGF - Programmthema: | Flugzeuge | ||||||||||||||||||||
| DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||
| DLR - Forschungsgebiet: | L AR - Aircraft Research | ||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | L - Simulation und Validierung (alt) | ||||||||||||||||||||
| Standort: | Göttingen | ||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > C²A²S²E - Center for Computer Applications in AeroSpace Science and Engineering | ||||||||||||||||||||
| Hinterlegt von: | Micknaus, Ilka | ||||||||||||||||||||
| Hinterlegt am: | 12 Mai 2015 15:34 | ||||||||||||||||||||
| Letzte Änderung: | 12 Mai 2015 15:34 |
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