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高温材料处理:国际期刊
ESCI SJR: 0.176 SNIP: 0.48 CiteScore™: 1.3

ISSN 打印: 1093-3611
ISSN 在线: 1940-4360

高温材料处理:国际期刊

DOI: 10.1615/HighTempMatProc.v3.i2-3.60
pages 213-220

A NEW CRITERION TO CARRY OUT THE TRANSITION BETWEEN THE LAMINAR AND THE TURBULENT BEHAVIOURS OF A PLASMA JET

Charles de Izarra
LASEP (Laboratoire d'Analyse Spectroscopique et d'Energetique des Plasmas), UFR-Faculte des Sciences, Antenne de BOURGES, Universite d'ORLEANS, rue Gaston Berger, BP 4043, 18028 BOURGES CEDEX, FRANCE
Olivier Vallee
LASEP (Laboratoire d'Analyse Spectroscopique et d'Energetique des Plasmas), UFR-Faculte des Sciences, Antenne de BOURGES, Universite d'ORLEANS, rue Gaston Berger, BP 4043, 18028 BOURGES CEDEX, FRANCE
Richard Pauvit
LASEP (Laboratoire d'Analyse Spectroscopique et d'Energetique des Plasmas), UFR-Faculte des Sciences, Antenne de BOURGES, Universite d'ORLEANS, rue Gaston Berger, BP 4043, 18028 BOURGES CEDEX, FRANCE

ABSTRACT

This paper is devoted to the characterisation of the turbulent-laminar transition in a DC plasma jet operating with pure argon at atmospheric pressure. The computation of correlation functions on sampled data (arc voltage, arc current intensity, sound and light emissions) allows to carry out a new criterion at the laminar-turbulent transition.


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