In search of smooth sandpiles: The Edwards-Wilkinson equation with flow

Parthapratim Biswas, Arnab Majumdar, Anita Mehta and J.K. Bhattacharjee

Physica A: Statistical Mechanics and its Applications, 1998, vol. 248, issue 3, 379-392

Abstract: The well-known Edwards-Wilkinson equation with a flow term added exhibits a smoothing fixed point in addition to the normal EW fixed point. Based on this, we present a model of sandpiles involving a coupling between fixed and mobile grains, which then shows the smoothing behaviour that would be expected to obtain after avalanche propagation.

Keywords: Sandpiles; Interfacial roughening; Coupled continuum equations (search for similar items in EconPapers)
Date: 1998
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:248:y:1998:i:3:p:379-392

DOI: 10.1016/S0378-4371(97)00416-0

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