Turbulent Diamagnetism in Flowing Liquid Sodium
Plasma Physics
2007-05-23 v1 Geophysics
Abstract
The nature of Ohm's law is examined in a turbulent flow of liquid sodium. A magnetic field is applied to the flowing sodium, and the resulting magnetic field is measured. The mean velocity field of the sodium is also measured in an identical-scale water model of the experiment. These two fields are used to determine the terms in Ohm's law, indicating the presence of currents driven by a turbulent electromotive force. These currents result in a diamagnetic effect, generating magnetic field in opposition to the dominant fields of the experiment. The magnitude of the fluctuation-driven magnetic field is comparable to that of the field induced by the sodium's mean flow.
Keywords
Cite
@article{arxiv.physics/0702068,
title = {Turbulent Diamagnetism in Flowing Liquid Sodium},
author = {E. J. Spence and M. D. Nornberg and C. M. Jacobson and C. A. Parada and N. Z. Taylor and R. D. Kendrick and C. B. Forest},
journal= {arXiv preprint arXiv:physics/0702068},
year = {2007}
}