One-demensional Simulation of Drop Breakup in Inkjet

摘要

In this study, we use a simplified ID slender-jet analysis based on the lubrication approximation to study the drop breakup in inkjet. In this model, the free-surface is represented by a shape function so that the full Naiver-Stokes equation can be linearized into a set of simple partial different equations (PDEs). Then the discrete PDEs are solved by method of lines (MOL) in a moving uniform staggered mesh in Lagrangian coordinates. The MATLAB is used to implement the algorithm and simulation. Finally, we validate the model using 2D computational fluid dynamics (CFD) simulations and established data from previous paper. The research demonstrate that the proposed model enables rapid parametric analysis of drop breakup and satellite droplets formation as a function of nozzle dimensions, driving pulse and fluid properties.