Probst, Axel and Schwamborn, Dieter and Garbaruk, Andre and Guseva, Ekaterina and Shur, Misha and Strelets, Mikhail and Travin, Andrej (2017) Evaluation of grey area mitigation tools within zonal and non-zonal RANS-LES approaches in flows with pressure induced separation. International Journal of Heat and Fluid Flow, 68, pp. 237-247. Elsevier. doi: 10.1016/j.ijheatfluidflow.2017.08.008. ISSN 0142-727X.
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Official URL: https://doi.org/10.1016/j.ijheatfluidflow.2017.08.008
Abstract
Hybrid RANS-LES computations of the separated flow over a wall-mounted hump are presented, which employ different grey-area mitigation techniques in the framework of a structured and an unstructured flow solver. Two zonal approaches using different synthetic-turbulence generators at the RANS-LES inter- face, as well as a non-zonal approach based on a shear-layer-adapted subgrid scale are compared in detail with validation data from a wind-tunnel experiment. Irrespective of the applied flow solver, the differ- ent methods are shown to be similarly effective in reducing the grey area compared to the basic hybrid RANS-LES model, and thus provide satisfying mean-flow predictions of the pressure-induced separation.
Item URL in elib: | https://elib.dlr.de/116018/ | ||||||||||||||||||||||||
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Document Type: | Article | ||||||||||||||||||||||||
Additional Information: | Contents lists available at ScienceDirect; journal homepage: www.elsevier.com/locate/ijhff; Article history: Available online 5 September 2017 | ||||||||||||||||||||||||
Title: | Evaluation of grey area mitigation tools within zonal and non-zonal RANS-LES approaches in flows with pressure induced separation | ||||||||||||||||||||||||
Authors: |
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Date: | 5 September 2017 | ||||||||||||||||||||||||
Journal or Publication Title: | International Journal of Heat and Fluid Flow | ||||||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||||||
Open Access: | Yes | ||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||||||||
Volume: | 68 | ||||||||||||||||||||||||
DOI : | 10.1016/j.ijheatfluidflow.2017.08.008 | ||||||||||||||||||||||||
Page Range: | pp. 237-247 | ||||||||||||||||||||||||
Editors: |
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Publisher: | Elsevier | ||||||||||||||||||||||||
ISSN: | 0142-727X | ||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||
Keywords: | Hybrid RANS-LES, Wall-bounded flows, Pressure-induced Separation, Grey-area mitigation | ||||||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||
HGF - Program: | Aeronautics | ||||||||||||||||||||||||
HGF - Program Themes: | fixed-wing aircraft | ||||||||||||||||||||||||
DLR - Research area: | Aeronautics | ||||||||||||||||||||||||
DLR - Program: | L AR - Aircraft Research | ||||||||||||||||||||||||
DLR - Research theme (Project): | L - Simulation and Validation (old) | ||||||||||||||||||||||||
Location: | Göttingen | ||||||||||||||||||||||||
Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > CASE, GO | ||||||||||||||||||||||||
Deposited By: | Bachmann, Barbara | ||||||||||||||||||||||||
Deposited On: | 27 Nov 2017 15:40 | ||||||||||||||||||||||||
Last Modified: | 05 Nov 2020 18:50 |
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