Atmospheric Argon Free burning Arcs with a Simplified Unified Model Using CFD-Arc Modeling

Won-Ho Lee, Jong-Chul Lee

Abstract


Free burning arcs, where the work piece acts as an anode, are frequently used for a number of applications. Our investigation is exclusively concerned with a simplified unified model of arcs and their electrodes under steady state conditions at atmospheric pressure. The model is used to make predictions of arc and electrode temperatures and arc voltage for a 200 A arc in argon. The computed temperatures along the axis between the cathode tip and the anode surface compare well the measured data.

Keywords


free burning arcs; thermal plasmas; arc modeling; arc-electrode interaction; computational fluid dynamics.

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ISSN 1210-2709 (Print)
ISSN 1805-2363 (Online)
Published by the Czech Technical University in Prague