Formation of an eddy current in the thermal acceleration of a completely ionized plasma
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The steady-state plane slowly varying flow of a completely ionized nonviscous quasi-neutral plasma in a shaped channel with continuous metal walls is considered. The Hall effect is taken into account. It is shown that for β ≫ 1, where β is the plasma parameter (β = 8πp/B2, p is the gas-kinetic pressure of the plasma, and B is the magnetic field strength), the acceleration of the plasma is necessarily accompanied by the appearance of natural electromagnetic fields and an electric current, the distribution of which for small discharge voltages has an eddy-current form. The eddy currents disappear when the discharge voltage is increased. The acceleration of a plasma with isothermal electrons is investigated in detail.
KeywordsMagnetic Field Field Strength Electromagnetic Field Electric Current Industrial Mathematic
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