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Experimental investigation of laser-sustained plasma in supersonic argon flow

Sperber, David and Eckel, Hans-Albert and Moessinger, Peter and Fasoulas, Stefanos (2011) Experimental investigation of laser-sustained plasma in supersonic argon flow. In: AIP Conference Proceedings, 1402, pp. 405-415. American Institute of Physics. Seventh International Symposium on Beamed Energy Propulsion, 10.-14. April 2011, Ludwigsburg, Deutschland. ISBN 978-0-7354-0974-3. ISSN 0094-243X

Full text not available from this repository.

Official URL: http://scitation.aip.org/dbt/dbt.jsp?KEY=APCPCS&Volume=1402&Issue=1

Abstract

Laser-induced energy deposition is widely discussed as a flow control technique in supersonic transportation. In case of thermal laser-plasma upstream of a blunt body, a substantial adaptation of shock wave geometry and magnitude of wave drag is predicted. Related to the research on laser supported detonation, the paper describes the implementation of laser-sustained plasma in a supersonic Argon jet. The stable plasma state is generated by the intersection of a Q-switched Nd:YAG-laser and a continuous wave CO2-laser beams, for ignition and maintenance of the plasma respectively. A miniature supersonic Ludwieg tube test facility generates a supersonic jet at velocities of Mach 2.1. Modifications of the flow and plasma conditions are investigated and characterized by Schlieren flow visualisation, laser energy transmission and plasma radiation measurements. The results include the discussions of the flow field as well as the required laser and gas parameters.

Document Type:Conference or Workshop Item (Speech)
Title:Experimental investigation of laser-sustained plasma in supersonic argon flow
Authors:
AuthorsInstitution or Email of Authors
Sperber, DavidDavid.Sperber@dlr.de
Eckel, Hans-AlbertHans-Albert.Eckel@dlr.de
Moessinger, PeterIRS Universität Stuttgart
Fasoulas, StefanosIRS Universität Stuttgart
Date:11 November 2011
Journal or Publication Title:AIP Conference Proceedings
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Volume:1402
Page Range:pp. 405-415
Editors:
EditorsEmail
Eckel, Hans-Alberthans-albert.eckel@dlr.de
Scharring, Stefanstefan.scharring@dlr.de
Publisher:American Institute of Physics
ISSN:0094-243X
ISBN:978-0-7354-0974-3
Status:Published
Keywords:Laser-sustained plasma, Laser energy deposition, Supersonic Argon flow, Wave drag reduction, Flow visualization
Event Title:Seventh International Symposium on Beamed Energy Propulsion
Event Location:Ludwigsburg, Deutschland
Event Type:international Conference
Event Dates:10.-14. April 2011
Organizer:DLR Institut für Technische Physik
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Laser Research and Technology
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics
Deposited By: Stefan Scharring
Deposited On:19 Dec 2011 08:56
Last Modified:19 Dec 2011 08:56

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