Concentrated phase emulsion with multicore morphology under shear: A numerical study

Recent microfluidic experiments have been capable of designing highly ordered multiple emulsions. Understanding the fluid-structure interaction occurring in these systems is crucial for their manufacturing in devices of interest in material science and biotechnology. Here it is shown that, under shear flow, multiple emulsions exhibit a variety of nonequilibrium states, whose formation essentially depends on internal vorticity and multibody collisions among droplets.