Progress in Plasma Processing of Materials, 1999

ISBN Print: 1-56700-126-2

Voltage-current characteristics of plasmatron with expanding channel

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DOI: 10.1615/ITPPC-1998.150
pages 93-98

P.P. Ivanov 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

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.S. Tyuftyaev Science and Technological Center of Associated Institute of High Temperature Russian Academy of Science - 13/19 Izhorskya St, Moscow, 127 412 - Russia

Resumo

Using the purpose-developed quasi-onedimensional Delphi code for the flow in the plasmatron with axial symmetry, calculations of voltage-current characteristics for plasmatrons with channel expansion angle from 0 to 180 are performed. The behavior of the Mach number under different values of current and expansion angles are investigated. The plasmatron with expanding channel differs by the relatively low level of the pressure and by the higher values of the current, when the critical condition is reached.

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