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Abstract: We study the jerky response of slowly driven fronts in disordered media, just above the depinning transition. We focus on how spatially disconnected clusters of internally correlated activity lead to largescale velocity fluctuations in the form of global avalanches and identify three different ways in which local activity clusters may organize within a global avalanche, depending on the distance to criticality. Our analysis provides new scaling relations between the power-law exponents of the statistical distributions of sizes and durations of local bursts and global avalanches. Fluid fronts of imbibition in heterogeneous media are taken as a case study to validate these scaling relations.
Fuente: Physical Review Letters 121, 034101 (2018)
Editorial: American Physical Society
Fecha de publicación: 01/07/2018
Nº de páginas: 6
Tipo de publicación: Artículo de Revista
DOI: 10.1103/PhysRevLett.121.034101
ISSN: 0031-9007,1079-7114
Proyecto español: FIS2016-74957-P
Url de la publicación: https://doi.org/10.1103/PhysRevLett.121.034101
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Repositorio UCrea Leer publicación
PLANET, RAMÓN
JUAN MANUEL LOPEZ MARTIN
SANTUCCI, STÉPHANE
ORTÍN, JORDI
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