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 language | English |
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Pages (from-to) | 1404-1414 |
Number of pages | 10 |
Journal | Physics of Fluids |
Volume | 13 |
Issue number | 5 |
DOIs | |
Publication status | Published - 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