Abstract
The behavior of a laser-supported detonation wave and the power generation performance in a laser-driven MHD generator which can be one of the candidates of space-based laser-to-electrical power converters are examined by a time-dependent one-dimensional numerical simulation. The electric power is generated through two modes attributed to 1) the propagation of detonation wave itself in the MHD channel and 2) the high temperature and pressure gas flow caused enough after the propagation of detonation wave. The fluid and plasma properties just behind the detonation wave are varied markedly owing to the strong Lorentz force under the applied magnetic field. The generator performance is comparable or superior to that in the conventional seeded plasma MHD generator, although the laser-driven MHD generator is supposed to be operated repetitively.
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