dorsal/arxiv
View SchemaSelf-organization in turbulence as a route to order in plasma and fluids
| Authors | M. G. Shats, H. Xia, H. Punzmann |
|---|---|
| Categories | |
| ArXiv ID | physics/0409074 |
| URL | https://arxiv.org/abs/physics/0409074 |
| DOI | 10.1103/PhysRevE.71.046409 |
| Journal | Physical Review E, 71, 046409 (2005) |
Abstract
Transitions from turbulence to order are studied experimentally in thin fluid layers and magnetically confined toroidal plasma. It is shown that turbulence self-organizes through the mechanism of spectral condensation. The spectral redistribution of the turbulent energy leads to the reduction in the turbulence level, generation of coherent flow, reduction in the particle diffusion and increase in the system's energy. The higher order state is sustained via the nonlocal spectral coupling of the linearly unstable spectral range to the large-scale mean flow. The similarity of self-organization in two-dimensional fluids and low-to-high confinement transitions in plasma suggests the universality of the mechanism.
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"abstract": "Transitions from turbulence to order are studied experimentally in thin fluid\nlayers and magnetically confined toroidal plasma. It is shown that turbulence\nself-organizes through the mechanism of spectral condensation. The spectral\nredistribution of the turbulent energy leads to the reduction in the turbulence\nlevel, generation of coherent flow, reduction in the particle diffusion and\nincrease in the system\u0027s energy. The higher order state is sustained via the\nnonlocal spectral coupling of the linearly unstable spectral range to the\nlarge-scale mean flow. The similarity of self-organization in two-dimensional\nfluids and low-to-high confinement transitions in plasma suggests the\nuniversality of the mechanism.",
"arxiv_id": "physics/0409074",
"authors": [
"M. G. Shats",
"H. Xia",
"H. Punzmann"
],
"categories": [
"physics.plasm-ph",
"physics.flu-dyn"
],
"doi": "10.1103/PhysRevE.71.046409",
"journal_ref": "Physical Review E, 71, 046409 (2005)",
"title": "Self-organization in turbulence as a route to order in plasma and fluids",
"url": "https://arxiv.org/abs/physics/0409074"
},
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