Document Detail


Deformation and breakup of high-viscosity droplets with symmetric microfluidic cross flows.
MedLine Citation:
PMID:  19792249     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
The dynamic response of highly viscous droplets to a sharp increase in the surrounding liquid velocity is experimentally investigated in a square microchannel junction. The local injection of the continuous phase from symmetric side channels onto a train of droplets produces a large velocity contrast between the front and the rear of droplets, yielding a broad range of time-dependent deformation and breakup. In particular, due to microscale confinement, the system displays a nonlinear behavior with the initial droplet size. Deformations, relaxation times, and fragmentation processes are examined as a function of flow parameters and fluids properties with emphasis on the formation of slender viscous structures such as spoon-shaped droplets, i.e., asymmetrical droplets.
Authors:
Thomas Cubaud
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Publication Detail:
Type:  Journal Article     Date:  2009-08-19
Journal Detail:
Title:  Physical review. E, Statistical, nonlinear, and soft matter physics     Volume:  80     ISSN:  1539-3755     ISO Abbreviation:  Phys Rev E Stat Nonlin Soft Matter Phys     Publication Date:  2009 Aug 
Date Detail:
Created Date:  2009-10-01     Completed Date:  2009-11-02     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:  026307     Citation Subset:  -    
Affiliation:
Department of Mechanical Engineering, Stony Brook University, Stony Brook, New York 11794, USA. thomas.cuband@stonybrook.edu
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