Avalanche dynamics in fluid imbibition near the depinning transition

Details Avalanche dynamics in fluid imbibition near the depinning transition Avalanche dynamics in fluid imbibition near the depinning transition

2010-03-03

arxiv.org/abs/1003.0926v1

Physical Review E (Rapid Communication), 80, 050101 (2009)

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

We study avalanche dynamics and local activity of forced-flow imbibition fronts in disordered media. We focus on the front dynamics as the mean velocity $\bar{v}$ of the interface is decreased and the pinning state is approached. Scaling arguments allow us to obtain the statistics of avalanche sizes and durations, which become power-law distributed due to the existence of a critical point at $\bar{v}= 0$. Results are compared with phase-field numerical simulations.

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