dorsal/arxiv
View SchemaVorticity statistics in the two-dimensional enstrophy cascade
| Authors | J Paret, M. C. Jullien, P Tabeling |
|---|---|
| Categories | |
| ArXiv ID | physics/9904044 |
| URL | https://arxiv.org/abs/physics/9904044 |
| DOI | 10.1103/PhysRevLett.83.3418 |
| Journal | Phys.Rev.Lett.83:3418-3421,1999 |
Abstract
We report the first extensive experimental observation of the two-dimensional enstrophy cascade, along with the determination of the high order vorticity statistics. The energy spectra we obtain are remarkably close to the Kraichnan Batchelor expectation. The distributions of the vorticity increments, in the inertial range, deviate only little from gaussianity and the corresponding structure functions exponents are indistinguishable from zero. It is thus shown that there is no sizeable small scale intermittency in the enstrophy cascade, in agreement with recent theoretical analyses.
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"abstract": "We report the first extensive experimental observation of the two-dimensional\nenstrophy cascade, along with the determination of the high order vorticity\nstatistics. The energy spectra we obtain are remarkably close to the Kraichnan\nBatchelor expectation. The distributions of the vorticity increments, in the\ninertial range, deviate only little from gaussianity and the corresponding\nstructure functions exponents are indistinguishable from zero. It is thus shown\nthat there is no sizeable small scale intermittency in the enstrophy cascade,\nin agreement with recent theoretical analyses.",
"arxiv_id": "physics/9904044",
"authors": [
"J Paret",
"M. C. Jullien",
"P Tabeling"
],
"categories": [
"physics.flu-dyn"
],
"doi": "10.1103/PhysRevLett.83.3418",
"journal_ref": "Phys.Rev.Lett.83:3418-3421,1999",
"title": "Vorticity statistics in the two-dimensional enstrophy cascade",
"url": "https://arxiv.org/abs/physics/9904044"
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