Dependence of characteristics of centrifugal magnetohydrodynamic conduction pump on electrical conductance of end walls. Part 1: Experiment

Computer Science – Performance

Scientific paper

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Electric Fields, Flow Characteristics, Liquid Metals, Magnetohydrodynamic Flow, Pumps, Electrical Resistivity, Magnetohydrodynamics, Mercury (Metal), Performance Tests, Pressure

Scientific paper

A centrifugal MHD conduction pump was studied experimentally in a special test stand for determining the dependence of its pressure flow characteristics on the electrical conductance of its end walls. The active space of such a pump is a horizontal cylindrical cavity filled with liquid metal, flow of the latter from the axis toward the side wall being produced by application of a radial electric field and rotational flow about the axis being produced by application of a constant axial magnetic field. The combined action of both fields drives liquid metal into a pipeline tapped from an orifice in the side wall. Tests were performed with mercury and measurements were made without axial flow, to determine the dependence of the developed radial pressure and the electric field distribution on the electric current and on the magnetic induction with three different pairs of end walls.

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