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PRODID:Linklings LLC
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TZID:Asia/Hong_Kong
X-LIC-LOCATION:Asia/Hong_Kong
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TZOFFSETFROM:+0800
TZOFFSETTO:+0800
TZNAME:HKT
DTSTART:19911015T033000
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BEGIN:VEVENT
DTSTAMP:20251218T030656Z
LOCATION:Meeting Room S221\, Level 2
DTSTART;TZID=Asia/Hong_Kong:20251218T094300
DTEND;TZID=Asia/Hong_Kong:20251218T095400
UID:siggraphasia_SIGGRAPH Asia 2025_sess149_papers_1993@linklings.com
SUMMARY:Multiphase Particle-Based Simulation of Poro-Elasto-Capillary Effe
 cts
DESCRIPTION:Ruolan Li (University of Science and Technology Beijing), Yanr
 ui Xu (Tsinghua University), Yalan Zhang (University of Science and Techno
 logy Beijing), Jiri Kosinka (University of Groningen), Alexandru C. Telea 
 (Utrecht University), Jian Chang and Jian Jun Zhang (Bournemouth Universit
 y), and Xiaojuan Ban and Xiaokun Wang (University of Science and Technolog
 y Beijing)\n\nSimulating the interactions between fluids and porous media 
 has attracted significant attention in computer graphics. A key challenge 
 in this domain is modeling the Poro-Elasto-Capillary (PEC) coupling effect
  which describes the intricate interplay of three physical phenomena in so
 ft porous materials: pore-structure evolution, elastic deformation, and we
 tting driven by capillary pressure. These phenomena collectively govern dy
 namic behavior such as the softening and fracturing of biscuits upon water
  absorption or the swelling of cellulose sponges due to liquid infiltratio
 n. Most existing simulation methods model porous media either as static gr
 ids or as solid particles with augmented water content attributes, failing
  to capture the full spectrum of PEC-driven effects due to the lack of phy
 sical modeling for elasticity, dynamic porosity changes, and capillary int
 eractions. We propose a multiphase particle-based framework to holisticall
 y simulate PEC coupling effects with porous media. We develop a physics-dr
 iven model that captures elasticity and dynamic pore-structure evolution u
 nder capillary action, enabling realistic simulation of softening and swel
 ling. We derive a saturation-aware pressure Poisson equation to enforce fl
 uid incompressibility within and around the porous medium, ensuring accura
 te capillary-driven flow while preserving mass and momentum. Finally, we p
 ropose a representative elementary volume-based formulation to unify the m
 odeling of homogeneous macro-porous media and cavity-embedded structures, 
 enhancing the representation of pore-scale PEC effects. Comparisons with p
 rior work and real footage show the advantages of our approach in achievin
 g visually realistic fluid-porous media interactions.\n\nRegistration Cate
 gory: Full Access, Full Access Supporter\n\nSession Chair: Bo Ren (TMCC, C
 ollege of Computer Science, Nankai University)\n\n
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