Open AccessMathematical model of radio-frequency ion thruster with an additional magnetostatic field
Author(s) -
S. V. Kanev,
A. V. Melnikov,
Игорь Петрович Назаренко,
S. A. Khartov
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/868/1/012010
Subject(s) - ion thruster , magnetic field , radio frequency , computational physics , plasma , rotational symmetry , physics , field (mathematics) , ion , electron , mechanics , mathematics , engineering , electrical engineering , nuclear physics , quantum mechanics , pure mathematics
The paper presents an engineering simplified mathematical model for estimating integral characteristics of radio-frequency ion thrusters with an additional magnetostatic field. In addition to the integral characteristics calculation, the proposed model allows to obtain the distributions of some plasma local parameters in a gas-discharge chamber of thruster – atoms and charged particles concentrations, and temperature of electrons. In a calculation, axisymmetric geometry of main elements of a thruster structure is considered. Two approaches to taking into account the influence of an additional magnetic field on the distribution of charged particles concentration are implementing. Each of them allows to estimate integral characteristics of radio-frequency ion thrusters with acceptable accuracy. The comparison of the experimental data with simulation results showed that error of thruster’s parameters estimation does not exceed 20-25%, which is sufficient for preliminary designing of new radio-frequency ion thrusters models with an additional source of magnetostatic field.