Dynamics of particle-covered droplets in shear flow: unusual breakup and deformation hysteresis.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 27853801.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
The dynamics of droplets exhibiting an elastic interface generated by a percolated network of particle aggregates at the interface is microscopically investigated in a counter rotating shear flow device. The droplet deformation is significantly suppressed by interfacially localized nanoparticles, even at high Ca numbers, resulting in suspension-like behavior at high particle coverage. When the Ca number surpasses a critical value, the particle network locally breaks up, resulting in localized deformability of the interface and breakup dynamics characterized by extremely irregular shapes. Finally, the destruction of the interfacial network results in hysteresis effects in the droplet deformation.