Dynamics of Polydispersed Emulsion Systems in a T-Shaped Chamber

Emulsions consist of droplets of one liquid mixed into another immiscible liquid. Our samples are oil-in-water emulsion droplets flowing through a T-shape chamber. By means of microscopy, we studied the influence of the polydispersity on the dynamics of emulsion droplets, analyzed the deformation profile of the droplets and compared the emulsions flow with stratified liquid flow. Our experimental results indicate that (1) monodispersed sample exhibited more jammed behavior than the polydispersed samples; (2) particles near the boundary move differently from those in the middle at the T-junction; (3) The flow of emulsion system exhibit more turbulence comparing with stratified flow; (4) smaller droplets moved faster and are less affected by cooperative motion of neighbor droplets.