Animated Ink Bleeding with Computational Fluid Dynamics

This work presents an advanced computational approach for simulating the traditional ink-on-wet paper art technique, focusing on the dynamic interplay between ink, water, and paper using the Lattice Boltzmann Method (LBM). We model ink motion using the advection-diffusion equation coupled with Navier-Stokes equations in a porous medium. We explore the impact of the background material's permeability on the realism of digital ink simulations. Our results highlight this method's potential in digital art, offering artists and animators a novel tool for creating realistic ink effects.