This page has moved to www.skewsme.com/mhd.html. Magnetohydrodynamics
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Magnetohydrodynamics Simple Equations |
Magnetohydrodynamics involves magnetic fields (magneto) and fluids (hydro) that conduct electricity and interact (dynamics).1 MHD technology is based on a fundamental law of electromagnetism: When a magnetic field and an electric current intersect in a liquid, their repulsive intersection propels the liquid in a direction perpendicular to both the field and the current.2
A computer actuated relay clicks in the small control room at Israel’s Ben Gurion University of the Negev. Nearby, a two story high power generator starts up.
But there’s a strange silence. There’s no whine from high speed turbine blades, no hum from copper generator coils whirring in a magnetic field, no hiss of pressurized, superhot steam. That’s because
In place of a propeller or paddle wheel, [the
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1 Magnetohydrodynamics (MHD), Dictionary of Scientific Literacy, Richard P. Brennan (New York: John Wiley & Sons, Inc., 1992), p. 195.
2 Dennis Normile and Robert Langreth, Superconductivity goes to sea, Popular Science, Nov 1992.
3 John Free, Now: liquid-metal MHD; magnetohydrodynamic power, Popular Science, July 1985.
4 Normile and Langreth, Superconductivity.
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