Mixing as a correlated aggregation process

HIGHLIGHTS

• What: The authors demonstrate that in smooth two-dimensional chaotic flows mixing obeys correlated aggregation process where the spatial distribution of the number of lamellae in aggregates highly correlated with their elongation and set by the fractal properties of the advected material lines. The authors show that the presence of correlations makes mixing less efficient than completely random aggregation process because lamellae with similar elongations and scalar levels tend to remain isolated from each other. The authors show that correlated aggregation uniquely determined by single exponent that quantifies the effective number of random aggregation events. The authors . . .
  

   

  

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