AI Article Synopsis
- The study uses Particle Image Velocimetry (PIV) to measure local velocity fields and compute the effective viscosity of soap films with particles during retraction.
- At a critical surface fraction of about 0.84, the research identifies jamming, indicating a divergence in effective viscosity.
- The findings suggest that the 2D dynamic viscosities can be predicted using a model that accounts for viscous dissipation at liquid interfaces caused by particle motion.
Article Abstract
We compute the effective viscosity of particulate soap films thanks to local velocity fields obtained by Particle Image Velocimetry (PIV) during film retraction experiments. We identify the jamming of these 2D capillary suspensions at a critical particle surface fraction (≃0.84) where effective viscosity diverges. Pair correlation function and number of neighbors in contact or close to contact reveal the cohesive nature of this 2D capillary granular media. The experimental 2D dynamic viscosities can be predicted by a model considering viscous dissipation at the liquid interfaces induced by the motion of individual particles.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/c7sm00090a | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!