Oblapenko, Georgii and Hannemann, Volker (2024) Uncertainty Quantification of Expanding High-Enthalpy Air Flows. In: 23rd STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics XIV, 154, pp. 143-152. Springer Nature. 23. STAB-DGLR-Symposium 2022, 2022-11-09 - 2022-11-10, Berlin. doi: 10.1007/978-3-031-40482-5_14. ISBN 978-3-031-40481-8. ISSN 1612-2909.
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Official URL: https://link.springer.com/book/10.1007/978-3-031-40482-5
Abstract
In the present work, we study the sensitivity of expanding hypersonic air flows in the HEG facility with respect to the thermochemical relaxation rates and reservoir conditions, along with the impact of uncertainties in the rates and reservoir conditions on uncertainties of the free-stream parameters. A simplified 1-D formulation of the flow equations is utilized to allow for simultaneous variation of a large number (10) of uncertain parameters. The simulation results show large uncertainties in the vibrational temperature of oxygen and molar fractions of oxygen-containing species, mainly due to uncertainties in the reservoir parameters and data on thermochemical relaxation rates of molecular oxygen.
Item URL in elib: | https://elib.dlr.de/190403/ | ||||||||||||||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||||||
Additional Information: | ISSN 1612-2909 ISSN 1860-0824 (electronic) ISBN 978-3-031-40481-8 ISBN 978-3-031-40482-5 (eBook) | ||||||||||||||||||||||||
Title: | Uncertainty Quantification of Expanding High-Enthalpy Air Flows | ||||||||||||||||||||||||
Authors: |
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Date: | 2024 | ||||||||||||||||||||||||
Journal or Publication Title: | 23rd STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics XIV | ||||||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||||||
Volume: | 154 | ||||||||||||||||||||||||
DOI: | 10.1007/978-3-031-40482-5_14 | ||||||||||||||||||||||||
Page Range: | pp. 143-152 | ||||||||||||||||||||||||
Editors: |
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Publisher: | Springer Nature | ||||||||||||||||||||||||
Series Name: | Notes on Numerical Fluid Mechanics and Multidisciplinary Design | ||||||||||||||||||||||||
ISSN: | 1612-2909 | ||||||||||||||||||||||||
ISBN: | 978-3-031-40481-8 | ||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||
Keywords: | shock tunnel, thermochemical relaxation, numerical simulation, uncertainty quantification, hypersonic flow | ||||||||||||||||||||||||
Event Title: | 23. STAB-DGLR-Symposium 2022 | ||||||||||||||||||||||||
Event Location: | Berlin | ||||||||||||||||||||||||
Event Type: | international Conference | ||||||||||||||||||||||||
Event Start Date: | 9 November 2022 | ||||||||||||||||||||||||
Event End Date: | 10 November 2022 | ||||||||||||||||||||||||
Organizer: | STAB | ||||||||||||||||||||||||
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: | 08 Dec 2022 18:07 | ||||||||||||||||||||||||
Last Modified: | 31 Jul 2024 17:56 |
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