filename     : San24a.pdf
entry        : inproceedings
conference   : Eurographics
pages        : e15022
year         : 2024
month        : April
title        : The Impulse Particle-In-Cell Method
subtitle     :
author       : Sergio Sancho, Jingwei Tang, Christopher Batty, Vinicius Azevedo
booktitle    : Computer Graphics Forum
ISSN/ISBN    : 
editor       : Amit Bermano and Evangelos Kalogerakis
publisher    : The Eurographics Association and John Wiley & Sons Ltd.
publ.place   : Computer Graphics Forum
volume       : 43
issue        : 2
language     : English
keywords     : Physical simulation, fluid simulation, energy preservation
abstract     : An ongoing challenge in fluid animation is the faithful preservation of vortical details, which impacts the visual depiction of flows. We propose the Impulse Particle-In-Cell (IPIC) method, a novel extension of the popular Affine Particle-In-Cell (APIC) method that makes use of the impulse gauge formulation of the fluid equations. Our approach performs a coupled advection-stretching during particle-based advection to better preserve circulation and vortical details. The associated algorithmic changes are simple and straightforward to implement, and our results demonstrate that the proposed method is able to achieve more energetic and visually appealing smoke and liquid flows than APIC.