Dynamic properties of nonequilibrium plasma in disk MHD generator

The realization of the stable plasma due to the fully ionized seed has been dynamically confirmed in a channel of the closed cycle disk generator by solving time-dependent MHD equations. The relaxation process is examined near the inlet of the disk generator. In the stable state, as the load resistance increases, the width of the relaxation region becomes narrower and, as a result, the uniformity of the plasma in a whole channel becomes better. The influences of the inlet conditions on changes of the relaxation region are also examined.