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Viscous fingering at ultralow interfacial tension

Abstract:

We experimentally study the viscous fingering instability in a fluid-fluid phase separated colloid-polymer mixture by means of laser scanning confocal microscopy and microfluidics. We focus on three aspects of the instability. (i) The interface between the two demixed phases has an ultralow surface tension, such that we can address the role of thermal interface fluctuations. (ii) We image the interface in three dimensions allowing us to study the interplay between interface curvature and flow...

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Publication status:
Published

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Publisher copy:
10.1039/c3sm51571k

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Journal:
SOFT MATTER
Volume:
9
Issue:
44
Pages:
10599-10605
Publication date:
2013-01-01
DOI:
EISSN:
1744-6848
ISSN:
1744-683X
URN:
uuid:8a6f91be-0f80-4ab8-983b-d7c36a43d876
Source identifiers:
439190
Local pid:
pubs:439190
Language:
English

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