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Geometric universality and anomalous diffusion in frictional fingers / Kristian Stølevik Olsen, Eirik Grude Flekkøy, Luiza Angheluta, James Matthew Campbell, Knut Jørgen Måløy, Bjørnar Sandnes, Bjornar Sandnes

New Journal of Physics, Volume: 21, Issue: 6, Start page: 063020

Swansea University Author: Bjornar Sandnes

Abstract

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

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Published in: New Journal of Physics
ISSN: 1367-2630
Published: 2019
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa50586
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Abstract: Frictional finger trees are patterns emerging from non-equilibrium processes in particle-fluid systems. Their formation share several properties with growth algorithms for minimal spanning trees in random energy landscapes. We propose that the frictional finger trees are indeed in the same geometric universality class as the minimal spanning trees, 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.
Issue: 6
Start Page: 063020