Saric, Sanjin ; Kniesner, Björn ; Mehdizadeh, A. ; Jakirlić, Suad ; Hanjalic, K. ; Tropea, Cameron (2007)
Comparative assessment of hybrid LES/RANS models in turbulent flows separating from smooth surfaces.
Second Symposium on Hybrid RANS-LES Methods. Corfu, Greece (17.06.2007-18.06.2007)
doi: 10.1007/978-3-540-77815-8_15
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
Several hybrid LES/RANS (LES - Large-Eddy Simulation; RANS - Reynolds- Averaged Navier-Stokes) models have been assessed in computations of separated flows over smooth-contoured, wall-mounted hills, including flow control. The models considered include DES (Detached Eddy Simulation; Spalart et al. 1997, Travin et al. 2002), DDES (Delayed DES; Spalart et al. 2006), a zonal hybrid LES/RANS scheme (HLR; Jakirlic et al. 2006) and an Instability-Sensitized (IS) k-ε model. We report on models performance in the two configurations: periodic flow over a symmetric 2-D hill at moderate Reynolds number (Re b =10595; LES: Fröhlich et al.,2005; Breuer et al., 2005) and flow over a 2-D hump at high Re number( Re c ≈ 106,Exp.: Greenblatt et al., 2004). In the latter case the separation was controlled by steady suction through a narrow opening at the natural separation line in addition to the baseline flow. The computational results obtained confirm a crucial role of the LES/RANS interface treatment.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2007 |
| Autor(en): | Saric, Sanjin ; Kniesner, Björn ; Mehdizadeh, A. ; Jakirlić, Suad ; Hanjalic, K. ; Tropea, Cameron |
| Art des Eintrags: | Bibliographie |
| Titel: | Comparative assessment of hybrid LES/RANS models in turbulent flows separating from smooth surfaces |
| Sprache: | Englisch |
| Publikationsjahr: | 2007 |
| Ort: | Berlin |
| Verlag: | Springer |
| Buchtitel: | Advances in Hybrid RANS-LES Modelling. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 97 |
| Veranstaltungstitel: | Second Symposium on Hybrid RANS-LES Methods |
| Veranstaltungsort: | Corfu, Greece |
| Veranstaltungsdatum: | 17.06.2007-18.06.2007 |
| DOI: | 10.1007/978-3-540-77815-8_15 |
| Kurzbeschreibung (Abstract): | Several hybrid LES/RANS (LES - Large-Eddy Simulation; RANS - Reynolds- Averaged Navier-Stokes) models have been assessed in computations of separated flows over smooth-contoured, wall-mounted hills, including flow control. The models considered include DES (Detached Eddy Simulation; Spalart et al. 1997, Travin et al. 2002), DDES (Delayed DES; Spalart et al. 2006), a zonal hybrid LES/RANS scheme (HLR; Jakirlic et al. 2006) and an Instability-Sensitized (IS) k-ε model. We report on models performance in the two configurations: periodic flow over a symmetric 2-D hill at moderate Reynolds number (Re b =10595; LES: Fröhlich et al.,2005; Breuer et al., 2005) and flow over a 2-D hump at high Re number( Re c ≈ 106,Exp.: Greenblatt et al., 2004). In the latter case the separation was controlled by steady suction through a narrow opening at the natural separation line in addition to the baseline flow. The computational results obtained confirm a crucial role of the LES/RANS interface treatment. |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet Strömungslehre und Aerodynamik (SLA) |
| Hinterlegungsdatum: | 20 Nov 2008 08:27 |
| Letzte Änderung: | 12 Nov 2024 08:32 |
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