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Progress in Plasma Processing of Materials, 2001

ISBN:
1-56700-165-3 (印刷)

NUMERICAL CALCULATION OF LAMINAR FLOWS IN PLASMATRONS

Oleg A. Sinkevich
Science Technological Center of Associated Institute for High Temperature, Russian Academy of Science and Moscow Power Engineering Institute (Technical University), Russia

S. E. Chikunov
Science Technological Center of Associated Institute for High Temperature, Russian Academy of Science and Moscow Power Engineering Institute (Technical University)

Vasilii V. Glazkov
Moscow Power Engineering Institute (Technical University), Russia

E. Kh. Isakaev
Science and Engineering Center for Energy-Efficient Processes and Equipment of Joint, Institute for High Temperatures of Russian Academy of Sciences Izhorskaya 13/19, Moscow, 127412, Russia

A. G. Khachaturova
Science Technological Center of Associated Institute for High Temperature, Russian Academy of Science and Moscow Power Engineering Institute (Technical university)

要約

Within the framework of a program devoted to complex research on electric arcs and near-electrode processes, a simplified 2-dimensional mathematical model of electric arc with self-settled length in a cylindrical cooled channel with axial injection of working gas was developed. To find electric arc length in the channel it was supposed that the arc moves downwards on a flow and makes casual wandering on cross section of the channel under action of whirlwinds, which each bent site of an arc generates in a flow behind itself. Within these assumptions the equation for mean arc length was obtained. Created model of an electric arc complemented by a condition of short circuit quite satisfactorily describe known experimental data.