Figure 5
From: Interoccurrence time statistics in fully-developed turbulence
(a) The PDF of the normalized IOTs for the shuffled velocity time series with Reλ = 603, and several standard deviations σQ. All the data collapse onto the same exponential function, 
. (b) The rescaled PDFs of the IOTs extracted from the fBm processes with various Hurst exponents, indicating a power-law form, 
. (c) The PDFs of the IOT of the velocity time series with Reλ = 603, and that of a fBm process with H = 0.38, for several standard deviations. (d) The probability density u(b) for the normalized IOT sequences associated with the normalised velocity time series for Reλ = 603 (circles) and its corresponding shuffled series (diamonds). Dashed line indicates the fitted χ2 distribution, Eq. (3), with a degree of freedom k ≃ 12.
