Multiscale velocity correlation in turbulence: experiments, numerical simulations, synthetic signals

Details Multiscale velocity correlation in turbulence: experiments, numerical simulations, synthetic signals Multiscale velocity correlation in turbulence: experiments, numerical simulations, synthetic signals

1998-11-21

arxiv.org/abs/chao-dyn/9811021v1

Phys. Fluids, Vol. 11, No. 8 (1999) 2215-2224.

Nonlinear Sciences

Chaotic Dynamics

Scientific paper

10.1063/1.870083

Multiscale correlation functions in high Reynolds number experimental turbulence, numerical simulations and synthetic signals are investigated. Fusion Rules predictions as they arise from multiplicative, almost uncorrelated, random processes for the energy cascade are tested. Leading and sub-leading contribution, in the inertial range, can be explained as arising from a multiplicative random process for the energy transfer mechanisms. Two different predictions for correlations involving dissipative observable are also briefly discussed.

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