Geometric universality and anomalous diffusion in frictional fingers

Frictional finger trees are patterns emerging from non-equilibrium processes in particle-fluid systems. Their formation share several properties with growth algorithms for minimum spanning trees (MSTs) in random energy landscapes. We propose that the frictional finger trees are indeed in the same ge...

Full description

Bibliographic Details
Published in:New Journal of Physics
Main Authors: Kristian Stølevik Olsen, Eirik Grude Flekkøy, Luiza Angheluta, James Matthew Campbell, Knut Jørgen Måløy, Bjørnar Sandnes
Format: Article
Language:English
Published: IOP Publishing 2019-01-01
Subjects:
anomalous diffusion
universality
complex networks
labyrinths
Online Access:https://doi.org/10.1088/1367-2630/ab25bf
Description
Summary:Frictional finger trees are patterns emerging from non-equilibrium processes in particle-fluid systems. Their formation share several properties with growth algorithms for minimum spanning trees (MSTs) in random energy landscapes. We propose that the frictional finger trees are indeed in the same geometric universality class as the MSTs, which is checked using updated numerical simulation algorithms for frictional fingers. We also propose a theoretical model for anomalous diffusion in these patterns, and discuss the role of diffusion as a tool to classify geometry.
ISSN:1367-2630

Similar Items