High Temperature Material Processes (An International Quarterly of High-Technology Plasma Processes) An International Journal

ISSN for PRINT: 1093-3611

For Online Access

Best Paper Award Selection - Editorial Board Site

2001, Volume5

Issue 3

160 pages

Issue price - $144.00

L. Delair
U.M.R 6614 - C.N.R.S - C.O.R.I.A., Technopole du Madrillet - B. P. 12, 76801 Saint Etienne du Rouvray Cedex, France

J. L. Brisset
L.E.I.C.A. - U.F.R. des Sciences et Techniques de Rouen 76821 Mont Saint Aignan cedex, France

B. G. Cheron
CORIA, UMR 6614, Université de Rouen, Site Universitaire du Madrillet, Avenue de l'Université, 76801 Saint-Étienne du Rouvray Cedex, France

In the frame of works devoted to chemical interactions between an atmospheric air gliding arc and aqueous solutions, an analysis of the plasma flow from its ignition location to the liquid surface is performed. The major reactive species are identified and quantified by means of spectroscopic analysis. Emphasis is laid on the ignition zone located at the narrowest electrodes gap where high electron temperature and high electron density are measured. The evolution of the arc voltage and current intensity is analyzed in relation to the characteristics of the A.C. power source. The arc roots and column movements are described by means of a high motion picture camera. The axial mean velocity of the flow is determined from experimental and theoretical ways then compared with the velocity of the arc column. As characterized by high frequency relaxation oscillations, the operating of this gliding arc strongly differs from the one usually adopted in the literature.

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