Uncertainty Quantification of Expanding High-Enthalpy Air Flows

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/

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:

Authors	Institution or Email of Authors	Author's ORCID iD	ORCID Put Code
Oblapenko, Georgii	UNSPECIFIED	https://orcid.org/0000-0002-1434-7166	UNSPECIFIED
Hannemann, Volker	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED

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:

Gold Open Access:

In SCOPUS:

Yes

In ISI Web of Science:

Volume:

154

DOI:

10.1007/978-3-031-40482-5_14

Page Range:

pp. 143-152

Editors:

Editors	Email	Editor's ORCID iD	ORCID Put Code
Dillmann, Andreas	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Heller, Gerd	Airbus Bremen	UNSPECIFIED	UNSPECIFIED
Krämer, Ewald	Institut für Aerodynamik und Gasdynamik, Universität Stuttgart	UNSPECIFIED	UNSPECIFIED
Wagner, Claus	UNSPECIFIED	https://orcid.org/0000-0003-2273-0568	UNSPECIFIED
Weiss, Julien	ILR-Aerodynamik, TU Berlin	UNSPECIFIED	UNSPECIFIED

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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