Abstract
In this article, we highlight and discuss overlooked physics and point out inaccuracies in a recently developed kinetic model of Teflon ablation caused by plasma in ablation controlled discharges. The effects of internal degrees of freedom on the energy flux conservation and the change of the average molecular mass with temperature on the mass, momentum, and energy fluxes conservation are investigated. Modifications to the governing set of equations, to account for these two effects, are derived and presented. Simple assessment of these effects showed the significance of including such modifications in the study of vaporization of Teflon and compound materials in ablation controlled arcs.
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