Electromagnetic Pump With Thin Metal Walls

[+] Author and Article Information
N. Ma, J. S. Walker

Department of Mechanical and Industrial Engineering, University of Illinois, Urbana, IL 61801

T. J. Moon

Mechanical Engineering Department, University of Texas, Austin, TX 78712-1063

J. Fluids Eng 116(2), 298-302 (Jun 01, 1994) (5 pages) doi:10.1115/1.2910271 History: Received December 15, 1992; Revised October 27, 1993; Online May 23, 2008


This paper treats a liquid-metal flow in a rectangular duct with a strong, uniform, transverse magnetic field and with thin metal walls, except for two finite-length, perfectly conducting electrodes in the side walls, which are parallel to the magnetic field. There are large velocities inside the boundary layers adjacent to the thin metal side walls, but not inside the layers adjacent to the electrodes. Upstream and downstream of the electrodes, a significant fraction of the total flow leaves and enters the side-wall boundary layers, respectively. For the particular duct treated here, the fully developed side layers, which carry 38.8 percent of the total flow, are realized at a distance of three characteristic lengths from the ends of the electrodes.

Copyright © 1994 by The American Society of Mechanical Engineers
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