Intermittency and exponent field dynamics in developed turbulence

Hirokazu Fujisaka, Yasuya Nakayama

研究成果: Contribution to journalArticle査読

抄録

Spatiotemporal dynamics of intermittency in association with coarse-grained energy-dissipation rate fluctuations is discussed. This is done first by phenomenologically constructing the probability density for exponent field fluctuations that is introduced to characterize the energy-dissipation rate field, and then by proposing the Langevin dynamics derived with the projection-operator method on the basis of the Navier-Stokes equation. With a Gaussian approximation for exponent fluctuations, spatiotemporal correlation functions for coarse-grained energy-dissipation rate fluctuations are explicitly obtained.

本文言語英語
ページ数1
ジャーナルPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
67
2
DOI
出版ステータス出版済み - 1 1 2003
外部発表はい

All Science Journal Classification (ASJC) codes

  • 統計物理学および非線形物理学
  • 数理物理学
  • 凝縮系物理学
  • 物理学および天文学(全般)

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