{
  "id": "0710.4100",
  "version": "v1",
  "published": "2007-10-22T16:39:27.000Z",
  "updated": "2007-10-22T16:39:27.000Z",
  "title": "Sub-Kolmogorov-Scale Fluctuations in Fluid Turbulence",
  "authors": [
    "Joerg Schumacher"
  ],
  "comment": "8 pages, 5 figures (Figs. 1 and 3 in reduced quality)",
  "journal": "Europhys. Lett., 80 (2007) 54001",
  "doi": "10.1209/0295-5075/80/54001",
  "categories": [
    "physics.flu-dyn",
    "nlin.CD"
  ],
  "abstract": "We relate the intermittent fluctuations of velocity gradients in turbulence to a whole range of local dissipation scales generalizing the picture of a single mean dissipation length. The statistical distribution of these local dissipation scales as a function of Reynolds number is determined in numerical simulations of forced homogeneous isotropic turbulence with a spectral resolution never applied before which exceeds the standard one by at least a factor of eight. The core of the scale distribution agrees well with a theoretical prediction. Increasing Reynolds number causes the generation of ever finer local dissipation scales. This is in line with a less steep decay of the large-wavenumber energy spectra in the dissipation range. The energy spectrum for the highest accessible Taylor microscale Reynolds number R_lambda=107 does not show a bottleneck.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2007-10-22T16:39:27.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "sub-kolmogorov-scale fluctuations",
      "fluid turbulence",
      "highest accessible taylor microscale reynolds",
      "energy spectrum",
      "finer local dissipation scales"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "EPL (Europhysics Letters)",
      "year": 2007,
      "month": "Dec",
      "volume": 80,
      "number": 5,
      "pages": 54001
    },
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2007EL.....8054001S"
    }
  }
}