Detection of a flow induced magnetic field eigenmode in the Riga dynamo facility
Detection of a flow induced magnetic field eigenmode in the Riga dynamo facility
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DOI：
10.1103/physrevlett.84.4365
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发表时间：
2000-05-08
影响因子：
8.6
通讯作者：
Will, G
中科院分区：
文献类型：
--
作者：
Gailitis, A;Lielausis, O;Will, G
在封闭的熔融钠体积中，由外部动力推进器产生了强烈的单涡状螺旋流。在0.67米（3）/秒的流速缓慢增长的磁场本征模式被检测到。对于稍低的流量，额外的测量显示出该模式的缓慢衰减。测量结果符合满意的增长率和频率的数值预测。
In a closed volume of molten sodium an intense single-vortex-like helical flow has been produced by an outside powered propeller. At a flow rate of 0.67 m(3)/s a slowly growing magnetic field eigenmode was detected. For a slightly lower flow, additional measurements showed a slow decay of this mode. The measured results correspond satisfactorily with numerical predictions for the growth rates and frequencies.