Unsteady interaction of a low temperature plasma jet with a solid propellant plate

摘要

The problem of the interaction of a high-temperature reactive gas mixture with a semi-infinite solid propellant plate is investigated. The ignition conditions of the plate are determined in the framework of the well-known model of burning powder with constant surface temperature when the heat flux into the plate is limited by some critical value. The gas medium is generated due to trie fluid (water or methane) evaporation under the action of the impulse electric high-powered discharge in the semi-closed volume and its outflow to the ambient space. The presence of non-equilibrium chemical reactions is considered. The number of chemical species and chemical reactions is approximately several dozen. As the result of numerical modeling the presence of ignition zones and non-burning zones (gasification zones) along the surface of the solid propellant plate is discovered.