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DTSTAMP:20251218T030657Z
LOCATION:Meeting Room S221\, Level 2
DTSTART;TZID=Asia/Hong_Kong:20251218T091000
DTEND;TZID=Asia/Hong_Kong:20251218T092100
UID:siggraphasia_SIGGRAPH Asia 2025_sess149_papers_1192@linklings.com
SUMMARY:Kinetic Free-Surface Flows and Foams with Sharp Interfaces
DESCRIPTION:Haoxiang Wang (Department of Automation, Tsinghua University);
  Kui Wu (LightSpeed Studios); Hui Qiao (Department of Automation, Tsinghua
  University); Mathieu Desbrun (INRIA, Ecole Polytechnique); and Wei Li (Jo
 hn Hopcroft Center for Computer Science, School of Computer Science, SJTU)
 \n\nKinetic multiphase flow solvers have recently demonstrated exquisitely
  complex and turbulent fluid phenomena involving splashing and bubbling. H
 owever, they require full simulation of both the liquid phase and the air 
 to capture a large spectrum of fluid behaviors. Moreover, they rely on dif
 fuse interface tracking to properly account for the interfacial forces inv
 olved in fluid-air interactions. Consequently, simulating visually appeali
 ng fluids is extremely compute intensive given the required resolution to 
 capture small bubbles, and foam simulation is unattainable with this famil
 y of methods. While water simulation involves density and viscosity differ
 ences between the two phases so large that one can safely ignore the dynam
 ics of air, so-called kinetic free-surface solvers that only consider the 
 liquid motion have been unable to reproduce the full gamut of turbulent fl
 uid behaviors, being often unstable for even moderately complex scenarios.
  By revisiting kinetic solvers using sharp interfaces and incorporating re
 cent advances in single-phase and multiphase LBM solvers, we propose a fre
 e-surface kinetic solver, which we call HOME-FREE LBM, that not only handl
 es turbulence, glugging, and bubbling, but even foam where bubbles stick t
 o each other through surface tension. We demonstrate that our fluid simula
 tor allows for\nfast and robust bubble growth, breakup, and coalescence, a
 t a fraction of the computational time that existing CG fluid solvers requ
 ire.\n\nRegistration Category: Full Access, Full Access Supporter\n\nSessi
 on Chair: Bo Ren (TMCC, College of Computer Science, Nankai University)\n\
 n
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