Intermittency and interrelationships between turbulence scaling exponents: phase-randomisation tests.

Vladimir Ivanovich Nikora, D. Goring, R. Camussi

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

A unified framework for velocity structure functions, sign-singular cancellation measures, multifractal measures of the energy dissipation and absolute values of the velocity derivative ("vorticity"), and the two-scale velocity structure functions is suggested. The scaling behavior of these measures within the inertial subrange is considered and tested using one-dimensional (1-D) velocity measurements from a high Re jet flow. In these tests we used the phase-randomization procedure that appears to be an effective tool in identifying the effects of turbulence intermittency and spectral energy flux. A number of relationships between turbulence scaling exponents are derived and tested. (C) 2001 American Institute of Physics.

Original languageEnglish
Pages (from-to)1404-1414
Number of pages10
JournalPhysics of Fluids
Volume13
Issue number5
DOIs
Publication statusPublished - 2001

Keywords

  • FULLY-DEVELOPED TURBULENCE
  • ONE-DIMENSIONAL SURROGATE
  • SIGN-SINGULAR MEASURES
  • TRUE DISSIPATION RATE
  • HIGH-REYNOLDS-NUMBER
  • FLUID TURBULENCE
  • ISOTROPIC TURBULENCE
  • MULTIFRACTAL NATURE
  • COHERENT STRUCTURES
  • ENERGY-DISSIPATION

Cite this