Effect of interactions between multiple interfaces on the rheological characteristics of double emulsions

Se Bin Choi, Jae Yong Park, Ji Young Moon, Joon Sang Lee

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


In this study, we analyzed the rheological characteristics of double emulsions by using a three-dimensional lattice Boltzmann model. Numerical simulations indicate that interactions between multiple interfaces play a vital role in determining the shear stress on interfaces and affect deformations, which influence the relative viscosity of double emulsions. The large shear stress induced by droplets in contact increases the relative viscosity for high volume fractions. The double emulsions also show shear-thinning behavior, which corresponds with the Carreau model. The interfacial interference between the core and the deforming shell cause the relative viscosity to increase with increasing core-droplet radius. Finally, we investigated the dependence of the double-emulsion viscosity on the core-droplet viscosity. At high shear rates, the relative viscosity increases with increasing core-droplet viscosity. However, the trend is opposite at low shear rates, which results from the high inward flow (Marangoni flow) at low core-droplet viscosity.

Original languageEnglish
Article number062603
JournalPhysical Review E
Issue number6
Publication statusPublished - 2018 Jun 8

Bibliographical note

Funding Information:
This research was supported by the Advanced Research Center Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (2015R1A5A1037668).

Publisher Copyright:
© 2018 American Physical Society.

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics


Dive into the research topics of 'Effect of interactions between multiple interfaces on the rheological characteristics of double emulsions'. Together they form a unique fingerprint.

Cite this