Two-scale analysis of intermittency in fully developed turbulence
General Energy Research Department Paul Scherrer
Institute, 5232 Villigen, Switzerland
Accepted: 22 June 1998
A self-affinity test for turbulent time series is applied to experimental data for the estimation of intermittency exponents. The method employs exact relations satisfied by joint expectations of observables computed across two different length scales. One of these constitutes a verification tool for the existence and the extent of the inertial range.
PACS: 47.27.Gs – Isotropic turbulence; homogeneous turbulence / 02.50.-r – Probability theory, stochastic processes, and statistics / 05.40.+j – Fluctuation phenomena, random processes, and Brownian motion
© EDP Sciences, 1998