SPH simulations of binary droplet deformation considering the Fowkes theory

Abstract To analyze the complex droplet transient deformation involving two immiscible phases, a practical multi-interfacial tension model has been introduced in SPH framework. The attraction, which operates on interface between different phases is explicitly defined as London dispersion force using Fowkes theoretical model, and interfacial can be calculated sum of attraction magnitudes corresponding to surrounding particles. analytical solution demonstrated good agreement with simulated results macroscopic multicontact angles nature interphase forces. This simple widely applicable dynamic analysis capillary forces or more liquids, we its application simulation behavior binary that contacts solid. solid-liquid-liquid contact angle not sufficient predict equilibrium morphology, momentum exchange liquids should considered.