Open AccessEstimation of gas-dynamic characteristics of supersonic plasma jets based on spectroscopy results
Author(s) -
А. С. Пащина,
V. F. Chinnov,
A. V. Efimov
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1698/1/012009
Subject(s) - supersonic speed , plasma , shock wave , choked flow , shock (circulatory) , jet (fluid) , electron density , electron temperature , atomic physics , plasma parameters , electron , spectroscopy , materials science , physics , mechanics , nuclear physics , medicine , quantum mechanics
A method for estimating the gas-dynamic characteristics of supersonic plasma jets based on the minimum number of plasma parameters (electron number density and temperature) that are easily measured by spectral diagnostic methods is considered. The course of the most important parameters characterizing the gas dynamics of the nonequilibrium plasma flow in the shock-wave region of a supersonic plasma jet created by a pulsed capillary discharge is revealed, and their values are estimated. A significant difference between the electron and gas temperatures was found in the vicinity of the central shock wave.