An investigation of the spatial distribution of the magnetic fields and electromagnetic effects in induction pumps

N. M. Okhremenko

Abstract
An account is given of an analytical study of the spatial distribution of the electromagnetic field in a plane linear induction pump with allowance for the finite width of duct and inductor and the presence of the metal walls of the duct and thermal Insulation. A demagnetization coefficient, characterizing the efficiency of the device, is introduced. This coefficient represents the ratio of the normal component of the induction at the surface of the inductor in the working regime to its value under no-load conditions with the current load fixed. An approximate expression is found for the depth of penetration of the traveling magnetic field in the presence of a transverse edge effect. Expressions for the magnetizing force and the components of the current density in the liquid metal are obtained. Figs. 6, Refs 6.