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Article

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Published version

Publication date

2006

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/18709

Relevance of dynamic wetting in viscous fingering patterns

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http://dx.doi.org/10.1103/PhysRevE.74.025302

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.

Subject

Viscositat, Dinàmica de fluids, Teoria quàntica, Teoria quàntica

Subject (English)

Viscosity, Fluid dynamics, Quantum theory

Citation

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Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

ALVAREZ LACALLE, Enrique, ORTÍN, Jordi and CASADEMUNT I VIADER, Jaume. Relevance of dynamic wetting in viscous fingering patterns. Physical Review E. 2006. Vol. 74, num. 2, pags. 025302(R). ISSN 1539-3755. [consulted: 8 of June of 2026]. Available at: https://hdl.handle.net/2445/18709

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