On the fine-scale intermittency of turbulence.

Research output: Contribution to journalArticle

Abstract

Identifies the roles played by the filter characteristics (such as the bandwidth) in determining the intermittency factor, the width of the active regions (pulses) in narrow-bandpass-filtered turbulent signals, and the pulse frequency. Reveals that all dynamical characteritics of the signal enter indirectly through the peak pulse frequency and the threshold setting. The most important feature of signals exhibiting internal intermittency is the stronger-than-algebraic roll off of the spectral density in that region. This feature of turbulence essentially determines the peak pulse frequency in that region.-from Author

Original languageEnglish (US)
Pages (from-to)81-103
Number of pages23
JournalJournal of Fluid Mechanics
Volume151
StatePublished - 1985

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Spectral density
intermittency
Turbulence
turbulence
Bandwidth
pulses
bandwidth
filters
thresholds

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Physics and Astronomy(all)
  • Condensed Matter Physics

Cite this

On the fine-scale intermittency of turbulence. / Sreenivasan, K. R.

In: Journal of Fluid Mechanics, Vol. 151, 1985, p. 81-103.

Research output: Contribution to journalArticle

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