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高温材料处理:国际期刊
SJR: 0.19 SNIP: 0.341 CiteScore™: 0.43

ISSN 打印: 1093-3611
ISSN 在线: 1940-4360

高温材料处理:国际期刊

DOI: 10.1615/HighTempMatProc.v10.i2.90
pages 265-280

A 2D MODELLING OF LASER-GAS BREAKDOWN IN ATMOSPHERIC AIR

P. Pignolet
Laboratoire de Thermique, Energétique et Procédés, Université de Pau, 64000 PAU, France
Eric Schall
Laboratoire de Thermique Energétique et Procédés Avenue de l'Université, BP 1155, 64013 Pau Cedex, France
S. Soubacq
Laboratoire de Thermique, Energétique et Procédés, Université de Pau, 64000 PAU, France

ABSTRACT

This paper is mainly concerned with Nd:YAG laser induced plasma in air at different pressures. A modelling of the dynamic phase of laser plasma is presented. This phase, described as a strong shock wave expanding out of the focal volume, is simulated by using a two-dimensional compressible flow calculation code. The evolution of pressure, temperature, densities and velocities are analyzed.


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