Transient deformation of a droplet near a microfluidic constriction: A quantitative analysis
MONTEUX, Cécile
Sciences et Ingénierie de la Matière Molle [SIMM]
Hokkaido University [Sapporo, Japan]
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Sciences et Ingénierie de la Matière Molle [SIMM]
Hokkaido University [Sapporo, Japan]
MONTEUX, Cécile
Sciences et Ingénierie de la Matière Molle [SIMM]
Hokkaido University [Sapporo, Japan]
< Reduce
Sciences et Ingénierie de la Matière Molle [SIMM]
Hokkaido University [Sapporo, Japan]
Language
en
Article de revue
This item was published in
Physical Review Fluids. 2018, vol. 3, n° 5, p. 053603
American Physical Society
English Abstract
We report on experiments that consist of deforming a collection of monodisperse droplets produced by a microfluidic chip through a flow-focusing device. We show that a proper numerical modeling of the flow is necessary to ...Read more >
We report on experiments that consist of deforming a collection of monodisperse droplets produced by a microfluidic chip through a flow-focusing device. We show that a proper numerical modeling of the flow is necessary to access the stress applied by the latter on the droplet along its trajectory through the chip. This crucial step enables the full integration of the differential equation governing the dynamical deformation, and consequently the robust measurement of the interfacial tension by fitting the experiments with the calculated deformation. Our study thus demonstrates the feasibility of quantitative in situ rheology in microfluidic flows involving, e.g., droplets, capsules, or cells.Read less <
ANR Project
Interfaces liquides recouvertes de multi-couches de polymères - ANR-12-JS08-0007
Origin
Hal imported