BEGIN:VCALENDAR VERSION:2.0 PRODID:Linklings LLC BEGIN:VTIMEZONE TZID:Asia/Tokyo X-LIC-LOCATION:Asia/Tokyo BEGIN:STANDARD TZOFFSETFROM:+0900 TZOFFSETTO:+0900 TZNAME:JST DTSTART:18871231T000000 END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20250110T023313Z LOCATION:Hall B7 (1)\, B Block\, Level 7 DTSTART;TZID=Asia/Tokyo:20241206T114300 DTEND;TZID=Asia/Tokyo:20241206T115400 UID:siggraphasia_SIGGRAPH Asia 2024_sess144_papers_876@linklings.com SUMMARY:Fluid Implicit Particles on Coadjoint Orbits DESCRIPTION:Technical Papers\n\nMohammad Sina Nabizadeh, Ritoban Roy-Chowd hury, Hang Yin, Ravi Ramamoorthi, and Albert Chern (University of Californ ia San Diego)\n\nWe propose Coadjoint Orbit FLIP (CO-FLIP), a high order a ccurate, structure preserving fluid simulation method in the hybrid Euleri an-Lagrangian framework. We start with a Hamiltonian formulation of the in compressible Euler Equations, and then, using a local, explicit, and high order divergence free interpolation, construct a modified Hamiltonian syst em that governs our discrete Euler flow. The resulting discretization, wh en paired with a geometric time integration scheme, is energy and circulat ion preserving (formally the flow evolves on a coadjoint orbit) and is sim ilar to the Fluid Implicit Particle (FLIP) method. CO-FLIP enjoys multipl e additional properties including that the pressure projection is exact in the weak sense, and the particle-to-grid transfer is an exact inverse of the grid-to-particle interpolation. The method is demonstrated numerically with outstanding stability, energy, and Casimir preservation. We show th at the method produces benchmarks and turbulent visual effects even at low grid resolutions.\n\nRegistration Category: Full Access, Full Access Supp orter\n\nLanguage Format: English Language\n\nSession Chair: Kui Wu (Light Speed Studios) URL:https://asia.siggraph.org/2024/program/?id=papers_876&sess=sess144 END:VEVENT END:VCALENDAR