A predictive model of erosion calculation for ion-plasma sources and discharge chamber channel walls in stationary plasma engine

Аuthors

Abgarian V. K.^*, Ryzhov Y. A.

Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia

*e-mail: vka.mai@mail.ru

Abstract

A model is suggested to compute wall shape changes for discharge chamber channel of a stationary plasma engine. Computed erosion shapes were obtained for the M-100 engine. They correspond satisfactorily to data of full-scale durability tests. An appropriate computer program is able to analyze flows of atomized channel material both inside and outside of the channel. Calculation results show a film sputtering into anode region and these data are confirmed with experiments.

Keywords:

erosion; discharge chamber channel; ionic atomization; sputtering