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International Journal of Aerospace Engineering
Volume 2011 (2011), Article ID 896836, 15 pages
http://dx.doi.org/10.1155/2011/896836
Research Article

Argon 4s and 4p Excited States Atomic Data Applied in ARC-JET Modeling

1Centre de Données Atomiques GAPHYOR, Laboratoire de Physique des Gaz et des Plasmas, UMR 8578, Université de Paris XI, 91405 Orsay, France
2DEDALOS, 32 rue Charles de Gaulle, 91400 Orsay, France
3Institute of Electric Power Engineering, IEPE, Poznan University of Technology, 60-965 Poznan, Poland
4Institut Jean Le Rond d'Alembert, Université de Paris VI, 75252 Paris Cedex 05, France

Received 8 March 2011; Revised 31 May 2011; Accepted 16 June 2011

Academic Editor: I. D. Boyd

Copyright © 2011 K. Katsonis et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Evaluated atomic data concerning the 4s and 4p configurations of Ar I are averaged in order to simplify their use in various cases of Ar plasma modeling and diagnostics. These data are used here to model a low-power arcjet, running with Argon at low pressure. In so doing, they are explicitly introduced in the chemical processes included in a fluid Navier-Stokes type code, allowing for evaluation of the spectroscopically measurable level populations and of the electronic temperatures. The characteristics of the model are described and the main processes are discussed in view of the results of the calculations.