On the flow of a conducting fluid between parallel disks with a transverse magnetic field

The importance is recognized for the flow of conducting fluid between parallel disks with an axial magnetic field from the technical viewpoint of nonequilibrium plasma flow in MHD generation. The theoretical investigation on the nonequilibrium plasma flow of compressible inviscid inert gas using alkali metal seed is presented. Considering the sulsonic flow outside boundary layer and the electron temperature dependence of conductivity by two-temperature model, it was shown that the circumferential velocity component affected much to MHD power generation characteristics. The fundamental equations for these special flow including the continuous equations of flow and electric current, the equations of motion, the state equation, the conductivity equation, etc., the mathematical solution of these equations, the analytical investigation of internal flow characteristics, and the power generating efficiency are presented. Several analytical results are shown, for example the relations between power generation, voltage between two plates, radial velocity distribution, pressure distribution and electric current, etc. (Nakai, Y.)