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Oblapenko, Georgii and Hannemann, Volker (2023) Sensitivity Analysis of Non-equilibrium Expanding High-Enthalpy Flows. In: AIAA SciTech 2023 Forum, pp. 1-19. AIAA SciTech Forum, 23.-27. Jan. 2023, National Harbor, Maryland, USA. doi: 10.2514/6.2023-1139.
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Official URL: https://arc.aiaa.org/doi/10.2514/6.2023-1139
Abstract
The role of vibrational and chemical relaxation processes on simulations of expanding hypersonic flows is considered in the present work. The Polynomial Chaos Expansion method is used to obtain uncertainty bounds of relevant flow properties (translational and vibrational temperatures, pressure, species molar fractions), as well as their sensitivities to vibrational relaxation times and chemical reaction rates. The studies are conducted for air flows under conditions relevant to different operating conditions of the HEG (High-enthalpy shock tunnel Göttingen).
| Item URL in elib: | https://elib.dlr.de/194007/ | ||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||
| Title: | Sensitivity Analysis of Non-equilibrium Expanding High-Enthalpy Flows | ||||||||||||
| Authors: |
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| Date: | 19 January 2023 | ||||||||||||
| Journal or Publication Title: | AIAA SciTech 2023 Forum | ||||||||||||
| Refereed publication: | Yes | ||||||||||||
| Open Access: | No | ||||||||||||
| Gold Open Access: | No | ||||||||||||
| In SCOPUS: | No | ||||||||||||
| In ISI Web of Science: | No | ||||||||||||
| DOI: | 10.2514/6.2023-1139 | ||||||||||||
| Page Range: | pp. 1-19 | ||||||||||||
| Editors: |
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| Status: | Published | ||||||||||||
| Keywords: | Relaxation Sensitivity Expanding flow | ||||||||||||
| Event Title: | AIAA SciTech Forum | ||||||||||||
| Event Location: | National Harbor, Maryland, USA | ||||||||||||
| Event Type: | international Conference | ||||||||||||
| Event Dates: | 23.-27. Jan. 2023 | ||||||||||||
| Organizer: | AIAA | ||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||
| HGF - Program: | Space | ||||||||||||
| HGF - Program Themes: | Space Transportation | ||||||||||||
| DLR - Research area: | Raumfahrt | ||||||||||||
| DLR - Program: | R RP - Space Transportation | ||||||||||||
| DLR - Research theme (Project): | R - Reusable Space Systems and Propulsion Technology | ||||||||||||
| Location: | Göttingen | ||||||||||||
| Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > Spacecraft, GO | ||||||||||||
| Deposited By: | Hannemann, Dr.rer.nat. Volker | ||||||||||||
| Deposited On: | 21 Mar 2023 14:41 | ||||||||||||
| Last Modified: | 21 Mar 2023 14:41 |
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