Detection of a flow induced magnetic field eigenmode in the Riga dynamo facility

被引:223
作者
Gailitis, A
Lielausis, O
Dement'ev, S
Platacis, E
Cifersons, A
Gerbeth, G
Gundrum, T
Stefani, F
Christen, M
Hänel, H
Will, G
机构
[1] Latvian State Univ, Inst Phys, LV-2169 Riga, Latvia
[2] Forschungszentrum Rossendorf EV, D-01314 Dresden, Germany
[3] Tech Univ Dresden, Dept Mech Engn, D-01062 Dresden, Germany
关键词
D O I
10.1103/PhysRevLett.84.4365
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
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.
引用
收藏
页码:4365 / 4368
页数:4
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