Simulation of a drop impact on a moving wall with a liquid film using the convected level-set method
Palavras-chave:
Drop splashing, Moving wall, Two-phase flow, Level-setResumo
A liquid drop impact on a moving wall with a pre-existing thin film of the same liquid is simulated using
the convected level-set method. We couple this interface-capturing method with the Navier-Stokes equations, and
we apply a global mass conservation procedure to enforce the mass balance between phases. The analysis takes
into account viscous, inertial, and surface tension forces, neglecting gravity. The Continuum Surface Force (CSF)
approach models surface tension forces. We solve the Navier-Stokes equations with the residual-based variational
multiscale finite element formulation and the convected level-set with a SUPG formulation with discontinuity-
capturing. We implement the whole model in libMesh, an open finite element library that provides a framework
for multiphysics, considering adaptive mesh refinement. The values of the Reynolds and Weber numbers determine
different drop splash regimes. Numerical results are presented for 2D and 3D liquid drop impacts, and they are in
good agreement with other simulations.
