Single-section, single-phase conduction pump

N. M. Nadezhnikov - A. Ya. Vilnitis - A. A. Stuken

Abstract
The model of a single-phase conduction pump is investigated in a electrodynamic approximation. The buses are assumed to be maximally thin so that the skin effect in them is not considered. The wide walls of the channel are taken into account, but the lateral walls are neglected. The channel is assumed to be infinitely long, and leakage of the field beyond the limits of the pole pieces is neglected. Given: channel current I, magnetizing current I_mw (ampere-turns), velocity of the working body v_x, dimensions of the pump, and electrical conductivity of the working body and walls. The contribution of the buses to the formation of the magnetic flux through the gap is taken into account. Expressions are obtained for magnetic induction and components of the current in the form of trigonometric series, and also expressions for the electromagnetic force developed in the working body and for Joule losses in the working body and walls. The distributions of magnetic induction and the transverse component of the current in various regimes were calculated on a computer; the surfaces of instantaneous values of induction and curves of the distribution of the transverse component of the current are given. The characteristics of these surfaces and curves are discussed.