Koyuncu , A. Balouch and V. E-mail: viola. In the present work, internal mixing of droplets formed by a flow-focusing X-junction at constant flow rates of both phases for three different channel heights i.
Both experimental methods and 3D CFD simulations were employed in order to resolve governing factors having an impact on internal mixing and homogenization time of model tracers inside of droplet reactors. Additionally, the influence of channel height on internal mixing was experimentally studied for continuous preparation of iron oxide nanoparticles by co-precipitation reaction.
Since the initial nucleation phase is strongly affected by mixing and spatial distribution of all reactants, the final particle size and particle size distribution PSD can be used as direct indicators of mixing performance. Monodisperse droplets can be generated in microfluidics actively using external source of energy e.
T-junction, Y-junction. In the co-flow geometry, the immiscible phases share the same flow direction in a set of coaxial microchannels. Flow-focusing geometry, employed in this work, is composed of three channels, one main channel and two symmetric side channels, forming axisymmetric X-junction where both immiscible fluids intersect each other.
In this type of junction, one fluid dispersed phase is discretised at high frequency Hz to kHz into small volumes dispersed in the immiscible carrier fluid continuous phase.
