Universal scaling laws in droplet coalescence: A dissipative particle dynamics study

Structure formation and coarsening kinetics of phase-separated spin-coated ethylcellulose/hydroxypropylcellulose films

“…8 However, Akella and Gidituri simulated two-droplet coalescence in two-dimension using dissipative particle dynamics. 24 They derived different scaling laws depending on parameters as inertial/viscous stresses and interfacial tension stresses that are in accordance with Paulsen et al . 25 They found that the time exponent could range from 1/2 for droplets with the same size and could be >1/2 for unequal sized droplets.…”

“…The exponents found for the discontinuous structures are on the same level as the exponents found in simulations performed by Akella and Gidituri. 24 They showed that coalescence can follow a scaling law with an exponent of 1/2 in the outer viscous regime. The outer viscous regime is characterized by the high viscosity of the surrounding fluid, which is valid then HPC is the continuous phase, since the molecular weight of HPC is much higher than the molecular weight of EC.…”

Viscoelastic necking dynamics between attractive microgels

“…ter droplets. 9 In DPD, each bead represents several molecules or molecules groups and its dynamics is described by Newton's second law m dv dt = f i . A DPD bead interacts with other beads through three types of pair-wise forces:…”

Coalescence of nematic liquid crystal droplets on freely suspended liquid crystal films

“…The parameter A and b can be determined from the experiment. The power b has been of significant interest [4][5][6][7][8][9][10][11][12][13]15] in the study of diffusion and coalescence of liquid interface. The event in the plot of figure 6 for both experiment and simulation yielded the result shown in table 1.…”

“…When the droplets come in, they form a bridge connecting the touching point [11]. 2D simulations of the condensation of two droplets have been studied in a few cases, e.g., two-drop condensation simulation studies using a mesoscopic method commonly used to simulate soft matter systems with the bridge connecting radius explained by specific scaling law [12][13] and numerically test of these theoretical predictions by simulating the phenomena in the commercial Finite Element software COMSOL Multiphysics [6]. Analysis of the case of coalescence with a viscous fluid from the external and for the identical viscosity case has also been studied in detail numerically.…”