dorsal/arxiv
View SchemaStructure of the Wake of a Magnetic Obstacle
| Authors | E. V. Votyakov, Yu. Kolesnikov, O. Andreev, E. Zienicke, A. Thess |
|---|---|
| Categories | |
| ArXiv ID | physics/0612103 |
| URL | https://arxiv.org/abs/physics/0612103 |
| DOI | 10.1103/PhysRevLett.98.144504 |
| Journal | Phys. Rev. Lett. 98, 144504 (2007) |
Abstract
We use a combination of numerical simulations and experiments to elucidate the structure of the flow of an electrically conducting fluid past a localized magnetic field, called magnetic obstacle. We demonstrate that the stationary flow pattern is considerably more complex than in the wake behind an ordinary body. The steady flow is shown to undergo two bifurcations (rather than one) and to involve up to six (rather than just two) vortices. We find that the first bifurcation leads to the formation of a pair of vortices within the region of magnetic field that we call inner magnetic vortices, whereas a second bifurcation gives rise to a pair of attached vortices that are linked to the inner vortices by connecting vortices.
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"abstract": "We use a combination of numerical simulations and experiments to elucidate\nthe structure of the flow of an electrically conducting fluid past a localized\nmagnetic field, called magnetic obstacle. We demonstrate that the stationary\nflow pattern is considerably more complex than in the wake behind an ordinary\nbody. The steady flow is shown to undergo two bifurcations (rather than one)\nand to involve up to six (rather than just two) vortices. We find that the\nfirst bifurcation leads to the formation of a pair of vortices within the\nregion of magnetic field that we call inner magnetic vortices, whereas a second\nbifurcation gives rise to a pair of attached vortices that are linked to the\ninner vortices by connecting vortices.",
"arxiv_id": "physics/0612103",
"authors": [
"E. V. Votyakov",
"Yu. Kolesnikov",
"O. Andreev",
"E. Zienicke",
"A. Thess"
],
"categories": [
"physics.flu-dyn",
"physics.comp-ph"
],
"doi": "10.1103/PhysRevLett.98.144504",
"journal_ref": "Phys. Rev. Lett. 98, 144504 (2007)",
"title": "Structure of the Wake of a Magnetic Obstacle",
"url": "https://arxiv.org/abs/physics/0612103"
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