The program is designed for students, Bachelor's Degree in Electrical Engineering , Electrical Engineering and Technology , Engineering specialty "Electrotechnological installations and systems" , Master's Degree in Plasma , laser and beam installations with power and control systems" . Plasma is the fourth state of matter - ionized electrically conductive gas. Plasma is able to store a lot of energy, which determines its use in various technologies (processing of powders, welding, cutting, decomposition of waste, etc.) ). It is generated in special devices - plasmotrons. To use plasma in various technologies, in most cases it must be blown out of the plasmatron by the flow of gas. High temperature and high speed of plasma movement provide the main technological advantages of plasmotrons. The manual is devoted to solving the problem of plasma movement in plasmotrons. The derivation of equations of motion and equations of continuity. is given. A joint solution of two-dimensional equations of motion and the equation of continuity is described using a physically clear and widespread numerical method - the control volume method. The results of the solution are presented in relation to high-frequency induction plasmotrons.