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http://hdl.handle.net/2445/12830
Title: | Kinetic roughening in two-phase fluid flow through a random Hele-Shaw cell |
Author: | Pauné i Xuriguera, Eduard Casademunt i Viader, Jaume |
Keywords: | Dinàmica de fluids Física estadística Fluid dynamics Statistical physics |
Issue Date: | 2003 |
Publisher: | American Physical Society |
Abstract: | A nonlocal interface equation is derived for two-phase fluid flow, with arbitrary wettability and viscosity contrast, c = ( μ 1 − μ 2 ) / ( μ 1 + μ 2 ) , in a model porous medium defined as a Hele-Shaw cell with random gap b 0 + δ b . Fluctuations of both capillary and viscous pressure are explicitly related to the microscopic quenched disorder, yielding conserved, nonconserved, and power-law correlated noise terms. Two length scales are identified that control the possible scaling regimes and which scale with capillary number Ca as ℓ 1 ∼ b 0 ( c C a ) − 1 / 2 and ℓ 2 ∼ b 0 C a − 1 . Exponents for forced fluid invasion are obtained from numerical simulation and compared with recent experiments. |
Note: | Reproducció digital del document proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevLett.90.144504 |
It is part of: | Physical Review Letters, 2003, vol. 90, núm. 14, p. 144504-1-144504-4 |
URI: | http://hdl.handle.net/2445/12830 |
Related resource: | http://dx.doi.org/10.1103/PhysRevLett.90.144504 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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514505.pdf | 137 kB | Adobe PDF | View/Open |
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