Observation of Magnetocoriolis Waves in a Liquid Metal Taylor-Couette Experiment

被引：50
作者：
Nornberg, M. D.
Ji, H.
Schartman, E.
Roach, A.
Goodman, J.
机构：
[1] Ctr Magnet Self Org Lab & Astrophys Plasmas, Princeton, NJ 08543 USA
[2] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA
来源：
PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 07期
关键词：
MAGNETOROTATIONAL INSTABILITY; INERTIAL WAVES; MAGNETIC-FIELD; EARTHS CORE; FLOW; OSCILLATIONS; TURBULENCE; DISKS;
D O I：
10.1103/PhysRevLett.104.074501
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The first observation of fast and slow magnetocoriolis (MC) waves in a laboratory experiment is reported. Rotating nonaxisymmetric modes arising from a magnetized turbulent Taylor-Couette flow of liquid metal are identified as the fast and slow MC waves by the dependence of the rotation frequency on the applied field strength. The observed slow MC wave is damped but the observation provides a means for predicting the onset of the magnetorotational instability.
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页数：4
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