Experimental investigation of the effect of injection of products of decomposition of pastelike coolant on the electrical conductivity of the flow ofpulsed MHD generator

A large-scale model of the channel of a pulsed MHD generator is investigate d in an applied electric field. It is demonstrated that the flow of plasma under conditions of wall protection by way of injecting the products of dec omposition of a pastelike coolant is realized with a clearly pronounced cor e and thin boundary layers. In the case of injection on the insulating wall s alone, the integral electrical conductivity of flow remains almost consta nt in a wide range of injection intensity up to the value of 4%. The inject ion into the electrode boundary layer causes a considerable reduction of it s electrical conductivity.