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:20241206T111900 DTEND;TZID=Asia/Tokyo:20241206T113100 UID:siggraphasia_SIGGRAPH Asia 2024_sess144_papers_797@linklings.com SUMMARY:An Impulse Ghost Fluid Method for Simulating Two-Phase Flows DESCRIPTION:Technical Papers\n\nYuchen Sun (Georgia Institute of Technolog y); Linglai Chen (Harvard University); Weiyuan Zeng (Zhejiang University); Tao Du (Tsinghua University, Shanghai Qi Zhi Institute); Shiying Xiong (Z hejiang University); and Bo Zhu (Georgia Institute of Technology)\n\nThis paper introduces a two-phase interfacial fluid model based on the impulse variable to capture complex vorticity-interface interactions. Our key idea is to leverage bidirectional flow map theory to enhance the transport acc uracy of both vorticity and interfaces simultaneously and address their co upling within a unified Eulerian framework. At the heart of our framework is an impulse ghost fluid method to solve the two-phase incompressible flu id characterized by its interfacial dynamics. To deal with the history-dep endent jump of gauge variables across a dynamic interface, we develop a no vel path integral formula empowered by spatiotemporal buffers to convert t he history-dependent jump condition into a geometry-dependent jump conditi on when projecting impulse to velocity. \n\nWe demonstrate the efficacy of our approach in simulating and visualizing several interface-vorticity in teraction problems with cross-phase vortical evolution, including interfac ial whirlpool, vortex ring reflection, and leapfrogging bubble rings.\n\nR egistration Category: Full Access, Full Access Supporter\n\nLanguage Forma t: English Language\n\nSession Chair: Kui Wu (LightSpeed Studios) URL:https://asia.siggraph.org/2024/program/?id=papers_797&sess=sess144 END:VEVENT END:VCALENDAR