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Flow Characterization and MHD Test in High Enthalpy Argon Flows

Steffens, Lars and Koch, Uwe and Esser, Burkard and Gülhan, Ali (2015) Flow Characterization and MHD Test in High Enthalpy Argon Flows. In: 8th European Symposium on Aerothermodynamics for Space Vehicles Proceedings (89144), pp. 1-6. 8th European Symposium on Aerothermodynamics for Space Vehicles, Lissabon, Portugal.

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Official URL: http://www.congrexprojects.com/Custom/15A01/Index.html

Abstract

For recent argon based magnetohydrodynamic (MHD) experiments in the DLR arc heated facility L2K the free stream plasma has been characterized. Suitable states for MHD test have been identified by maximizing the free stream electron density. Argon flows have been used due to the reduced chemical complexity of the plasma. The characterization methods include microwave interferometry (MWI), Langmuir probe measurements, Pitot probe profiles and spectroscopic methods like diode laser absorption spectroscopy (DLAS) and emission spectroscopy. The influence of a magnetic field on the heat transfer to the model has been studied with cylindrical stagnation point models, using both permanent and electromagnets with surface fields up to 0.54 T. To verify the influence of the field to the heat transfer both the shock distance and the surface heat flow have been observed.

Item URL in elib:https://elib.dlr.de/97924/
Document Type:Conference or Workshop Item (Speech)
Title:Flow Characterization and MHD Test in High Enthalpy Argon Flows
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Steffens, LarsLars.Steffens (at) dlr.deUNSPECIFIED
Koch, UweUwe.Koch (at) dlr.deUNSPECIFIED
Esser, BurkardBurkard.Esser (at) dlr.deUNSPECIFIED
Gülhan, AliAli.Guelhan (at) dlr.deUNSPECIFIED
Date:20 August 2015
Journal or Publication Title:8th European Symposium on Aerothermodynamics for Space Vehicles Proceedings
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-6
Series Name:Conference Proceedings online
Status:Published
Keywords:Flow Characterization, High Enthalpy Argon Flow
Event Title:8th European Symposium on Aerothermodynamics for Space Vehicles
Event Location:Lissabon, Portugal
Event Type:international Conference
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Proj. Thermas (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Über- und Hyperschalltechnologien
Deposited By: Steffens, Lars
Deposited On:20 Aug 2015 09:02
Last Modified:31 Jul 2019 19:54

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