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Automatic tracking of corona propagation in three-dimensional simulations of non-normal drop impact on a liquid film. (English) Zbl 1310.76013
Summary: A novel procedure for tracking the propagation of the corona observed after the impact of liquid drops on thin films is proposed for the case of non-normal drop impacts. Three-dimensional adaptive-grid simulations are performed for different impingement angles and Weber numbers. In the numerical model, the Navier-Stokes equations are complemented with the Volume-Of-Fluid (VOF) method to model the gas-liquid interface. In the considered cases, the main features of the corona dynamics determined using the proposed technique are consistent with the three-dimensional description of the flow.

76A20 Thin fluid films
65M50 Mesh generation, refinement, and adaptive methods for the numerical solution of initial value and initial-boundary value problems involving PDEs
76D05 Navier-Stokes equations for incompressible viscous fluids
76T10 Liquid-gas two-phase flows, bubbly flows
65M08 Finite volume methods for initial value and initial-boundary value problems involving PDEs
76-04 Software, source code, etc. for problems pertaining to fluid mechanics
Full Text: DOI
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