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Title: Relevance of dynamic wetting in viscous fingering patterns
Author: Alvarez Lacalle, Enrique
Ortín, Jordi, 1959-
Casademunt i Viader, Jaume
Keywords: Viscositat
Dinàmica de fluids
Teoria quàntica
Teoria quàntica
Fluid dynamics
Quantum theory
Issue Date: 2006
Publisher: The American Physical Society
Abstract: We demonstrate that wetting effects at moving contact lines have a strong impact in viscous fingering patterns. Experiments in a rotating Hele-Shaw (HS) cell, dry or prewetted, show consistent morphological differences. When the wetting fluid invades a dry region, contact angle dynamics yield a kinetic contribution to the interface pressure drop that scales with capillary number as Ca2¿3 but is significantly larger than the Park-Homsy kinetic correction. Numerical results are in very good agreement with experiments and show that standard HS equations work best for prewetted cells.
Note: Reproducció digital del document publicat a:
It is part of: Physical Review E, 2006, vol. 74, núm. 2, p. 025302(R)
Related resource:
ISSN: 1539-3755
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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