FINITE-LENGTH EFFECTS AND STABILITY OF ELECTROMAGNETIC PUMPS

被引：7
|
作者：
WERKOFF, F
机构：
[1] Commissariat à l'Energie Atomique, IRDI - DEDR - DTE, Service des Transferts Thermiques, Grenoble Cedex
来源：
EXPERIMENTAL THERMAL AND FLUID SCIENCE | 1991年 / 4卷 / 02期
关键词：
PUMPS; LIQUID METAL; STABILITY; MAGNETOHYDRODYNAMICS;
D O I：
10.1016/0894-1777(91)90060-5
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The basic principles of liquid metal induction machines, pumps and generators, are reviewed. Phenomena that limit the energetic efficiency of high-power machines-Joule losses in the liquid metal due to electromagnetic edge waves and flow inhomogeneities created by magnetohydrodynamic instability-are discussed. A linear stability analysis is presented in which, for the first time, edge waves are taken into account. Results are compared with experimental data from three large electromagnetic pumps (Soviet, French, and West German). It appears, surprisingly, that edge waves can either stabilize or destabilize the flow, depending on the characteristics of the induction machines.
引用
收藏
页码：166 / 170
页数：5
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