dorsal/arxiv
View SchemaObservation of a Turbulence-Induced Large Scale Magnetic Field
| Authors | E. J. Spence, M. D. Nornberg, C. M. Jacobson, R. D. Kendrick, C. B. Forest |
|---|---|
| Categories | |
| ArXiv ID | physics/0511029 |
| URL | https://arxiv.org/abs/physics/0511029 |
| DOI | 10.1103/PhysRevLett.96.055002 |
| Journal | Phys. Rev. Lett. 96, 055002 (2006) |
Abstract
An axisymmetric magnetic field is applied to a spherical, turbulent flow of liquid sodium. An induced magnetic dipole moment is measured which cannot be generated by the interaction of the axisymmetric mean flow with the applied field, indicating the presence of a turbulent electromotive force. It is shown that the induced dipole moment should vanish for any axisymmetric laminar flow. Also observed is the production of toroidal magnetic field from applied poloidal magnetic field (the omega-effect). Its potential role in the production of the induced dipole is discussed.
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"abstract": "An axisymmetric magnetic field is applied to a spherical, turbulent flow of\nliquid sodium. An induced magnetic dipole moment is measured which cannot be\ngenerated by the interaction of the axisymmetric mean flow with the applied\nfield, indicating the presence of a turbulent electromotive force. It is shown\nthat the induced dipole moment should vanish for any axisymmetric laminar flow.\nAlso observed is the production of toroidal magnetic field from applied\npoloidal magnetic field (the omega-effect). Its potential role in the\nproduction of the induced dipole is discussed.",
"arxiv_id": "physics/0511029",
"authors": [
"E. J. Spence",
"M. D. Nornberg",
"C. M. Jacobson",
"R. D. Kendrick",
"C. B. Forest"
],
"categories": [
"physics.plasm-ph",
"physics.flu-dyn"
],
"doi": "10.1103/PhysRevLett.96.055002",
"journal_ref": "Phys. Rev. Lett. 96, 055002 (2006)",
"title": "Observation of a Turbulence-Induced Large Scale Magnetic Field",
"url": "https://arxiv.org/abs/physics/0511029"
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