[SIGGRAPH 2024] A Vortex Particle-on-Mesh Method for Soap Film Simulation

A Vortex Particle-on-Mesh Method for Soap Film Simulation
Ningxiao Tao, Liangwang Ruan, Yitong Deng, Bo Zhu, Bin Wang, Baoquan Chen
SIGGRAPH 2024 (Journal Track)
Project Page: lwruan.com/pubs/vortex-bubble
Abstract:
This paper introduces a novel physically-based vortex fluid model for films, aimed at accurately simulating cascading vortical structures on deforming thin films. Central to our approach is a novel mechanism decomposing the film’s tangential velocity into circulation and dilatation components. These components are then evolved using a hybrid particle-mesh method, enabling the effective reconstruction of three-dimensional tangential velocities and seamlessly integrating surfactant and thickness dynamics into a unified framework. By coupling with its normal component and surface-tension model, our method is particularly adept at depicting complex interactions between in-plane vortices and out-of-plane physical phenomena, such as gravity, surfactant dynamics, and solid boundary, leading to highly realistic simulations of complex thin-film dynamics, achieving an unprecedented level of vortical details and physical realism.