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Abstract
Two computed models of an ac arc are considered in the paper. The burning of the arc in air is simulated between two electrodes, one of which is blown with gas. The simulation is performed using COMSOL Multiphysics software product. An incompressible flow is considered with default settings, when the density is constant and temperature-independent and the density is temperature-dependent. An analysis of the distribution of velocities, temperature on the axis, and the voltage drop across the arc is made.
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1 Peter the Great Saint-Petersburg Polytechnic University, Polytechnicheskaya 29, Saint-Petersburg 195251, Russia; Institute for Electrophysics and Electric Power of the Russian Academy of Sciences, Dvortsovaya emb. 18, Saint-Petersburg 191186, Russia
2 Peter the Great Saint-Petersburg Polytechnic University, Polytechnicheskaya 29, Saint-Petersburg 195251, Russia
3 Institute for Electrophysics and Electric Power of the Russian Academy of Sciences, Dvortsovaya emb. 18, Saint-Petersburg 191186, Russia
4 Institute for Electrophysics and Electric Power of the Russian Academy of Sciences, Dvortsovaya emb. 18, Saint-Petersburg 191186, Russia; Saint-Petersburg State Institute of Technology (Technical University), Moskovsky prospect, 26, Saint-Petersburg, 190013, Russia; Saint-Petersburg University, 11 Lieutenant Shmidt Emb., Saint-Petersburg 199034, Russia