Oblapenko, Georgii und Hannemann, Volker (2022) Uncertainty Quantification of Expanding High-Enthalpy Air Flows. In: 23rd STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics. 23. STAB-DGLR-Symposium 2022, 2022-11-09 - 2022-11-10, Berlin.
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Offizielle URL: https://www.tu.berlin/index.php?id=27890
Kurzfassung
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.
elib-URL des Eintrags: | https://elib.dlr.de/190403/ | ||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||
Titel: | Uncertainty Quantification of Expanding High-Enthalpy Air Flows | ||||||||||||
Autoren: |
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Datum: | November 2022 | ||||||||||||
Erschienen in: | 23rd STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics | ||||||||||||
Referierte Publikation: | Ja | ||||||||||||
Open Access: | Ja | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Nein | ||||||||||||
In ISI Web of Science: | Nein | ||||||||||||
Herausgeber: |
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Status: | veröffentlicht | ||||||||||||
Stichwörter: | shock tunnel, thermochemical relaxation, numerical simulation, uncertainty quantification, hypersonic flow | ||||||||||||
Veranstaltungstitel: | 23. STAB-DGLR-Symposium 2022 | ||||||||||||
Veranstaltungsort: | Berlin | ||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||
Veranstaltungsbeginn: | 9 November 2022 | ||||||||||||
Veranstaltungsende: | 10 November 2022 | ||||||||||||
Veranstalter : | STAB | ||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||
HGF - Programmthema: | Raumtransport | ||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||
DLR - Forschungsgebiet: | R RP - Raumtransport | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Wiederverwendbare Raumfahrtsysteme und Antriebstechnologie | ||||||||||||
Standort: | Göttingen | ||||||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Raumfahrzeuge, GO | ||||||||||||
Hinterlegt von: | Hannemann, Dr.rer.nat. Volker | ||||||||||||
Hinterlegt am: | 08 Dez 2022 18:07 | ||||||||||||
Letzte Änderung: | 24 Apr 2024 20:51 |
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