Three-Dimensional Computations of Free-Burning Arcs and Their Surroundings
Keywords:free-burning arc, thermal plasma, computational ﬂuid dynamics, LTE model
AbstractThis paper is concerned with developing a capability to model free-burning high-intensity argon arcs and enhancing the accuracy of numerical results according to three-dimensional calculations. It was found that the computed temperatures along the axis between the cathode tip and the anode surface show good agreement with two different measured data. Although the LTE model can reasonably predict the overall arc voltage for free-burning arcs, it fails to account accurately what happens at the regions near electrodes.
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