Fully Developed Turbulence in the view of Horizontal Visibility Graphs
arXiv:1512.08200 · doi:10.1088/1742-5468/2015/08/P08031
Abstract
We employ the horizontal visibility algorithm to map the velocity and acceleration time series in turbulent flows with different Reynolds numbers, onto complex networks. The universal nature of velocity fluctuations in high Reynolds turbulent Helium flow is found to be inherited in the corresponding network topology. The degree distributions of the acceleration series are shown to have stretched exponential forms with the Reynolds number dependent fitting parameter. Furthermore, for acceleration time series, we find a transitional behavior in terms of the Reynolds number in all network features which is in agreement with recent empirical studies.
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- Nonlinear Correlations in Multifractals: Visibility Graphs of Magnitude and Sign Series
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