Abstract
Two-dimensional analysis is carried out in order to reveal the generator characteristics of the large pulsed MHD generator “Sakhalin" under the self-excited magnetic mode and the fixed magnetic mode. Numerical results show that there is a considerable difference of the generator characteristics between the two magnetic modes. Under the fixed-magnetic mode, the channel current decreases with the loading parameter, while the channel voltage increases, so that the channel output power has an optimal value of loading parameter. Under the self-excited magnetic mode, the channel output power increases with the loading parameter in the low part of loading parameter because the channel current and the channel voltage increase with the loading parameter. In the high part of loading parameter, the channel output power is, however, saturated with the increase of the loading parameter because the channel voltage increases with the loading parameter, whereas the channel current decreases.
