Dynamic suppression of ionization instability

A method is considered for modeling switching of MHD devices of the Faraday and Hall type, taking into account the influence of the load on the effective plasma parameters. A linear and nonlinear analysis is carried out of the development and possible suppression of ionization instability in a plasma when the direction of the mean current vector changes periodically in the channel of an MHD device. Constraints are obtained on the values of the external load, Hall parameter, and frequency of change of the direction of current (caused by changing the type of switching of the MHD device) which are necessary both for complete and partial suppression of ionization instability. The calculated effective plasma parameters are compared with experimental data