Induction Electromagnetic Pump Research Articles

Design calculations for annular induction electromagnetic pumps based on the finite element method

The paper presents an application of the Galerkin triangular mesh finite element method using linear approximation, in axisymmetrical and plane geometry, to the design of liquid metal annular induction pumps. The code was tested by comparison with: - analytical calculations in simple geometry cases (15 × 15 square mesh) - test results on pumps constructed. Each calculation is also checked by internal balance of powers. The finite element method is particularly suitable for this application where a practical analytical method is not sufficiently accurate.

Annular duct single‐phase induction electromagnetic pump

Annular duct single‐phase induction electromagnetic pump

円筒形単相誘導電磁流体ポンプ

円筒形単相誘導電磁流体ポンプ

A periodic boundary-layer flow in magnetohydrodynamics

It is the purpose of this paper to solve a boundary-value problem posed by induction electromagnetic pumps and generators. Solutions are obtained by an expansion technique and a momentum method for the laminar, incompressible flow problem. For large values of the interaction parameter (μ2σH20λ/ρμe viscous effects are shown to be restricted to periodic boundary layers. In regions of high-field strength a local Hartmann solution is valid. Where the applied field is weak an inertial boundary layer is present which thickens in the upstream direction.A logical explanation of this phenomenon is given. The condition that a boundary-layer type flow exist is obtained and is shown to be in general satisfied. The results show that inviscid theory may be used to calculate the overall performance of electromagnetic pumps and generators while the boundary-layer theory developed here may be used to obtain the wall shear stress.