Dynamics of droplet breakup symmetrically placed between two collapsing cavities via numerical simulations.

ABSTRACT: Hydrodynamic cavitation is increasingly used for the production of liquid-liquid emulsions, yet the detailed mechanisms of droplet breakup induced by cavity collapse remain poorly understood. This study presents direct numerical simulations (DNS) of oil droplet fragmentation under the influence of two symmetrically collapsing cavities in water, mimicking conditions in cavitation-based emulsification devices. A volume-of-fluid (VOF) multiphase model is employed to examine the effects of interfacial tension (σ), viscosity ratio (λ), droplet-to-cavity size ratio (β), and driving pressure (ΔP) on droplet deformation and energy dissipation rate (ε). Unlike prior studies focused on single-cavity interactions or turbulent flows, this work reveals that symmetric cavity collapse generates complex,

SUBMITTER: Pandey DK 

PROVIDER: S-EPMC12345313 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature