Document Detail

Relevance of dynamic wetting in viscous fingering patterns.
MedLine Citation:
PMID:  17025495     Owner:  NLM     Status:  PubMed-not-MEDLINE    
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 Ca(2/3) 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.
E Alvarez-Lacalle; J Ortín; J Casademunt
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Publication Detail:
Type:  Journal Article     Date:  2006-08-29
Journal Detail:
Title:  Physical review. E, Statistical, nonlinear, and soft matter physics     Volume:  74     ISSN:  1539-3755     ISO Abbreviation:  Phys Rev E Stat Nonlin Soft Matter Phys     Publication Date:  2006 Aug 
Date Detail:
Created Date:  2006-10-09     Completed Date:  2006-12-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101136452     Medline TA:  Phys Rev E Stat Nonlin Soft Matter Phys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  025302     Citation Subset:  -    
Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 76100, Israel.
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