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Kuhnlein, Jan Niklas and Theiß, Alexander and Schnepf, Christian and Stemmer, Christian (2024) DNS of an oblique-breakdown transition in an impinging-shock/flat-plate-boundary-layer interaction flow. In: 24. STAB-DGLR-Symposium 2024, pp. 80-81. 24. STAB-DGLR-Symposium 2024, 2024-11-13 - 2024-11-14, Regensburg, Deutschland.
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Official URL: https://www.dlr.de/de/as/aktuelles/veranstaltungen/stab/2024/stab-jahresbericht_2024.pdf
Abstract
In this study, Direct Numerical Simulations (DNS) are performed for transitional shock-wave/boundary-layer interactions (SWBLIs) on a flat plate at Mach 6 for impinging-shock angles of 12.4° and 13.0°. A first mode oblique breakdown transition scenario is forced in the simulations by disturbing the boundary-layer flow upstream of the SWBLI. The boundary-layer transition in the SWBLI region is influenced by the amplitude of the artificial disturbances. The skin-friction and the heat-transfer rate at the wall affected by SWBLIs are analyzed. For the given scenario, the transition can be forced by an oblique breakdown mechanism with reasonable perturbation amplitudes. However, higher amplitudes are necessary to trigger rapid shock induced transition to fully turbulent flow.
| Item URL in elib: | https://elib.dlr.de/205774/ | ||||||||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||
| Title: | DNS of an oblique-breakdown transition in an impinging-shock/flat-plate-boundary-layer interaction flow | ||||||||||||||||||||
| Authors: |
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| Date: | November 2024 | ||||||||||||||||||||
| Journal or Publication Title: | 24. STAB-DGLR-Symposium 2024 | ||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||
| Open Access: | Yes | ||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||||||
| Page Range: | pp. 80-81 | ||||||||||||||||||||
| Series Name: | Jahresbericht | ||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||
| Keywords: | DNS, Hyperschall, Verdichtungsstoß, Grenzschicht, SGWW, SWBLI, PSE, hypersonic, shock, boundary-layer, | ||||||||||||||||||||
| Event Title: | 24. STAB-DGLR-Symposium 2024 | ||||||||||||||||||||
| Event Location: | Regensburg, Deutschland | ||||||||||||||||||||
| Event Type: | international Conference | ||||||||||||||||||||
| Event Start Date: | 13 November 2024 | ||||||||||||||||||||
| Event End Date: | 14 November 2024 | ||||||||||||||||||||
| Organizer: | STAB/DGLR | ||||||||||||||||||||
| HGF - Research field: | other | ||||||||||||||||||||
| HGF - Program: | other | ||||||||||||||||||||
| HGF - Program Themes: | other | ||||||||||||||||||||
| DLR - Research area: | Aeronautics | ||||||||||||||||||||
| DLR - Program: | L DT - Defense Technology | ||||||||||||||||||||
| DLR - Research theme (Project): | L - Effect | ||||||||||||||||||||
| Location: | Göttingen | ||||||||||||||||||||
| Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > High Speed Configurations, GO | ||||||||||||||||||||
| Deposited By: | Kuhnlein, Jan Niklas | ||||||||||||||||||||
| Deposited On: | 04 Dec 2024 13:29 | ||||||||||||||||||||
| Last Modified: | 04 Dec 2024 13:29 |
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