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Kitamura, Keiichi and Tsukamoto, Yuta and Wang, Zhong-Nan and Möller, Felix and Tucker, Paul G. (2024) Effects of LES/RANS Hybrid Interface Location on Oscillating Shockwave in Transonic Buffeting Flow. In: Proceedings of the Cambridge Unsteady Flow Symposium 2024, pp. 273-285. Springer Nature. Cambridge Unsteady Flow Symposium 2024, 2024-03-04 - 2024-03-05, Cambridge, UK. doi: 10.1007/978-3-031-69035-8_17. ISBN 978-3-031-69034-1.
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Abstract
A comparative study varying both the hybrid interface location and grid spacing was conducted on a transonic buffeting flow involving an unsteady shock-wave/turbulent-boundary-layer interaction by Zonal DES, a hybrid RANS/LES method. It was demonstrated that the hybrid interface as high as 1.5 times the boundary-layer thickness was a good choice for reproducing the unsteady nature of the buffet, on the contrary to the typically recommended value of y+ around 100 (corresponding to 3.4% the boundary-layer thickness). With this interface location of y+ being 60, the grid spacing recommended for flat plate boundary-layer or even the reduced cell size led to notorious, early grid-induced separation upstream the shock.
| Item URL in elib: | https://elib.dlr.de/210445/ | ||||||||||||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||||||
| Title: | Effects of LES/RANS Hybrid Interface Location on Oscillating Shockwave in Transonic Buffeting Flow | ||||||||||||||||||||||||
| Authors: |
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| Date: | 3 December 2024 | ||||||||||||||||||||||||
| Journal or Publication Title: | Proceedings of the Cambridge Unsteady Flow Symposium 2024 | ||||||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||||||
| Open Access: | No | ||||||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||||||||||
| DOI: | 10.1007/978-3-031-69035-8_17 | ||||||||||||||||||||||||
| Page Range: | pp. 273-285 | ||||||||||||||||||||||||
| Publisher: | Springer Nature | ||||||||||||||||||||||||
| ISBN: | 978-3-031-69034-1 | ||||||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||||||
| Keywords: | Hybrid RANS/LES/, Zonal DES, shock boundary layer interaction, shock buffet | ||||||||||||||||||||||||
| Event Title: | Cambridge Unsteady Flow Symposium 2024 | ||||||||||||||||||||||||
| Event Location: | Cambridge, UK | ||||||||||||||||||||||||
| Event Type: | international Conference | ||||||||||||||||||||||||
| Event Start Date: | 4 March 2024 | ||||||||||||||||||||||||
| Event End Date: | 5 March 2024 | ||||||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||
| HGF - Program: | Aeronautics | ||||||||||||||||||||||||
| HGF - Program Themes: | Clean Propulsion | ||||||||||||||||||||||||
| DLR - Research area: | Aeronautics | ||||||||||||||||||||||||
| DLR - Program: | L CP - Clean Propulsion | ||||||||||||||||||||||||
| DLR - Research theme (Project): | L - Virtual Engine | ||||||||||||||||||||||||
| Location: | Köln-Porz | ||||||||||||||||||||||||
| Institutes and Institutions: | Institute of Test and Simulation for Gas Turbines > Virtual Engine and Numerical Methods | ||||||||||||||||||||||||
| Deposited By: | Möller, Felix | ||||||||||||||||||||||||
| Deposited On: | 16 Dec 2024 15:36 | ||||||||||||||||||||||||
| Last Modified: | 16 Dec 2024 15:36 |
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