Abstract
The physics of plasma flow in a magnetic nozzle must be understood to optimize design of plasma propulsion devices. A resistive magnetohydrodynamics (MHD) computational method is used to study the flow of plasma in a magnetic nozzle. Parameters selected for simulations are similar to current magnetic nozzle experiments. As the magnetic field strength of the magnetic nozzle is increased the nozzle expands the plasma plume radially, adversely affecting nozzle performance. Plasma acceleration due to the magnetic nozzle is not shown. Some plasma detachment is shown, but further investigation is required. It is concluded that the utilized resistive MHD model may neglect important physics of magnetic nozzle plasma flows in currently being developed devices and more advanced physical models should also be tested. Future work is outlined.
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