Simulation framework for drop impacts on structured surfaces using PLIC-based contact line modeling

Developments in the field of surface technology promise custom-tailored surface structuring and require an understanding of the interaction with fluids. Our aim is to investigate drop impacts onto regularly structured surfaces with highly resolved direct numerical simulations. We therefore present in this paper a simulation framework with appropriate methods to capture the complex flow dynamics appearing inside the grooves. Free Surface 3D [2], our in-house multiphase flow solver, is updated accordingly and validated with several test cases. Included in the validation are an analytic test case as well as an experimental comparison that demonstrate the abilities of the framework.