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

Agris Gailitis·Olgerts Lielausis·Sergej Dement'ev·Ernests Platacis·Arnis Cifersons·Gunter Gerbeth·Thomas Gundrum·Frank Stefani·Michael Christen·Heiko Hänel·Gotthard Will
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Abstract

In an experiment at the Riga sodium dynamo facility, a slowly growing magnetic field eigenmode has been detected over a period of about 15 seconds. For a slightly decreased propeller rotation rate, additional measurements showed a slow decay of this mode. The measured results correspond satisfactory with numerical predictions for the growth rates and frequencies.

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Agris Gailitis, Olgerts Lielausis, Sergej Dement'ev, Ernests Platacis, Arnis Cifersons, Gunter Gerbeth, Thomas Gundrum, Frank Stefani, Michael Christen, Heiko Hänel, Gotthard Will. 1999-12-13. Detection of a flow induced magnetic field eigenmode in the Riga dynamo facility. https://doi.org/10.1103/physrevlett.84.4365

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