Numerical simulation for the generating conditions of a laser-sustained argon plasma jet

The temperature map of a laser-sustained argon plasma is calculated in the gas flow field upstream of a sonic nozzle orifice. The discretized equation of energy conservation is solved with a finite difference method. A forced parallel gas flow field is introduced in order to simulate the gas flow th...

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 1994-02, Vol.27 (2), p.253-262
Main Authors: Girard, J M, Lebehot, A, Campargue, R
Format: Article
Language:English
Subjects:
Exact sciences and technology
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Plasma production and heating
Plasma production and heating by laser beams
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Summary:The temperature map of a laser-sustained argon plasma is calculated in the gas flow field upstream of a sonic nozzle orifice. The discretized equation of energy conservation is solved with a finite difference method. A forced parallel gas flow field is introduced in order to simulate the gas flow through the nozzle. The gas flux calculation is self-consistent and convergence is obtained after about 200 iterations. The results are compared with experimental data. Agreement is satisfactory except that the theoretical laser power threshold is about one order of magnitude higher than the experimental measurement. (Original abstract-amended)
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/27/2/012