Asymmetric breakup of a droplet in an axisymmetric extensional flow

Electrically modulated relaxation dynamics of pre-stretched droplets post switched-off uniaxial extensional flow

“…where 2 is the steady-state value of o 2 and t c = (19l + 16)(2l + 3)/40(l + 1) is the time constant. From eqn (21), it is evident that the droplet deformation occurs as an exponentially decaying function of time and depends on the initial and steady-state conditions.…”

“…1 The droplet breakup mechanism, including pre-breakup and post-breakup events, involves a delicate interplay of various forces as well as kinematic constraints, which may emerge to be of significant impact towards understanding many frequently observed phenomena in nature as well as in practical applications in engineering such as polymer blending, fluid mixing, paint manufacturing, biological cell deformation and droplet microfluidics. [1][2][3][4][5][6][7][8] Further, with a deep-rooted understanding of some of the key physics associated, preferential parametric regimes can be chosen for effective control of emulsion rheology exclusive to a specific application in purview.…”

Parametric study of deformation and breakup of non-Newtonian droplet

“…The mode of the droplets breakup can be very different and it depends on the properties and composition of the droplets. Dongming et al, 18 investigated the breakup of a droplet in an axisymmetric tensional flow with various Capillary numbers using VOF method. The critical Weber number indicates the threshold of the increase in hydrodynamic instability and corresponds to the onset of droplet breakup.…”