The formation of droplets in an immiscible liquid the presence different surfactants was studied experimentally using a flow-focusing microchannel. A low viscosity silicone oil (4.6 mPa s) used as continuous phase and mixture 48% w/w water 52% glycerol dispersed phase. cationic (CMCDTAB = 20 mM), anionic (CMCSDS 11 non-ionic (CMCTX100 3.5 mM) surfactant were added aqueous phase, at several conc...

The dynamics of rigid particle suspensions in a wall-bounded laminar flow present several nontrivial and intriguing features, including ordering, lateral transport, the appearance stable, preferential locations like Segré–Silberberg annulus. formation more than one annulus is particularly puzzling phenomenon that still not fully explained. Here, we numerical simulation results dilute suspension...

Abstract Optical-based microfluidic cell sorting has become increasingly attractive for applications in life and environmental sciences due to its ability of sophisticated handling flow. The majority these devices employ two-dimensional fluid flow control strategies, which lack the manipulate position cells arbitrarily precise optical detection, therefore resulting reduced accuracy purity. Alth...

Abstract We report a unique tuneable analogue trend in particle focusing the laminar and weak viscoelastic regime of elasto-inertial flows. observe experimentally that particles circular cross-section microchannels can be tuned to any bandwidths lie between “Segre-Silberberg annulus” centre microcapillary. use direct numerical simulations investigate this phenomenon understand how minute amount...