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During the Impulse Plasma Deposition (IPD), plasma is generated in the working gas due to a high-voltage high-current discharge ignited within an inter-electrode region of a co‐ axial accelerator. The paper presents computational studies of working medium dynam‐ ics during the IPD discharge. The plasma has been investigated with a two-dimensional mono-fluidic snow plow model and a two-dimensional two-fluid magnetohydrodynamic code. Computational studies of plasma dynamics have shown the function of the snow plow mechanism during the acceleration of plasma discharge, the role of the Rayleigh-Taylor instability, and the details of a sophisticated structure of a plasmoid in the region of the electrodes' front head. Simulations have significantly increased the understanding of the phenomena during the IPD; they also pointed to optimization directions. Several recent developments in the IPD surface engineering have been suggested and supported by the presented computational investigations.

Computational Studies of the Impulse Plasma Deposition Method