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A theoretical approach to studying ionizable gas flows with the formation of an ionization front in the plasma accelerator channel is proposed. The study is based on the MHD equations supplemented with the ionization and recombination kinetics equation. As a result, the structure of an ionization front is investigated. [ABSTRACT FROM AUTHOR]

An analytic model of steady-state two-dimensional flows in coaxial plasma-accelerator channels in the presence of a longitudinal magnetic field is proposed. The solution of the problem is found in the smooth channel approximation for the MHD equations of an ideal two-component plasma. An example of the developing axisymmetric flows is given and the features of the plasma-dynamic processes are investigated. It is found that the Hall effect and the anode flow zone can be reduced using a longitudinal field and plasma rotation. [ABSTRACT FROM AUTHOR]