Modelling double emulsion formation in planar flow-focusing microchannels

Formation of dispersions using ‘‘flow focusing’’ in microchannels

Modelling and simulation of extensional-flow units in emulsion formation

In this contribution we studied the emulsification process carried out in an extensionalflow unit. By means of rigorous population and momentum balances we captured the phenomenological description of the first principles occurring in such unit. The strong feature of our model approach resides in the fully mechanistic description of the governing phenomena. Namely, a population balance equation...

Formation of Tunable, Emulsion Micro-Droplets Utilizing Flow-Focusing Channels and a Normally-Closed Micro-Valve

A mono-dispersed emulsion is of great significance in many chemical, biomedical and industrial applications. The current study reports a new microfluidic chip capable of forming tunable micro-droplets in liquids for emulsification applications. It can precisely generate size-tunable, uniform droplets using flow-focusing channels and a normally-closed valve, which is opened by a pneumatic suctio...

Fundamentals of inertial focusing in microchannels.

Inertial microfluidics has been attracting considerable interest in recent years due to immensely promising applications in cell biology. Despite the intense attention, the primary focus has been on development of inertial microfluidic devices with less emphasis paid to elucidation of the inertial focusing mechanics. The incomplete understanding, and sometimes confusing experimental results tha...

Inertial Focusing of Microparticles in Curvilinear Microchannels

A passive, continuous and size-dependent focusing technique enabled by "inertial microfluidics", which takes advantage of hydrodynamic forces, is implemented in this study to focus microparticles. The objective is to analyse the decoupling effects of inertial forces and Dean drag forces on microparticles of different sizes in curvilinear microchannels with inner radius of 800 μm and curvature a...