Simulations of droplet dynamics using moving mesh interface tracking with adaptive meshing

TL;DR

This paper presents a finite volume/moving mesh interface tracking method with adaptive meshing for simulating droplet dynamics, demonstrating improved accuracy and efficiency in various complex flow scenarios.

Contribution

It introduces adaptive mesh refinement and coarsening schemes within the MMIT framework for more efficient and accurate droplet simulations.

Findings

Successful simulation of droplet pair in gaseous flow

Simulation of droplet through convergent-divergent tube

Droplet interaction with solid wall demonstrated

Abstract

The dynamics of drop(s) has been simulated by the finite volume/moving mesh interface tracking method (MMIT) with adaptive mesh refining and coarsening. In MMIT, the interface is of zero thickness and moves in a Lagrangian fashion. A number of mesh refining and mesh coarsening schemes have been developed to distribute the mesh in an optimized way to achieve computing efficiency and accuracy. Three cases are displayed in this video, which include a droplet pair in tandem impulsively accelerated by a gaseous flow, a droplet moving through a convergent-divergent liquid-filled tube, and a droplet moving toward a sloped solid wall. The fluid dynamics videos of the simulations are to be presented in the Gallery of Fluid Motion, 2011.