{"689578":{"#nid":"689578","#data":{"type":"event","title":"PhD Proposal by Duowen Chen","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u0026nbsp;\u003C\/strong\u003EPhysics-Based Simulation for World Modeling Across Scales and Modalities\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDate:\u003C\/strong\u003E\u0026nbsp; Wednesday, April 15, 2026\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETime\u003C\/strong\u003E: 1:00 PM - 3:00 PM Eastern Time (US)\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ELocation:\u003C\/strong\u003E\u0026nbsp; \u0026nbsp;Coda C0908 Home Park\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EZoom\u003C\/strong\u003E: \u003Ca href=\u0022https:\/\/nam12.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fgatech.zoom.us%2Fj%2F95930183632\u0026amp;data=05%7C02%7Ctm186%40gtvault.onmicrosoft.com%7Cae2b5e1144c24fc224b508de9592fdc6%7C482198bbae7b4b258b7a6d7f32faa083%7C1%7C0%7C639112655725188118%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C\u0026amp;sdata=VFu5ueasP1PZplHVZVUozXwvnT4W8DBErzgnSS4YVbI%3D\u0026amp;reserved=0\u0022\u003Ehttps:\/\/gatech.zoom.us\/j\/95930183632\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee\u003C\/strong\u003E\u0026nbsp;\u0026nbsp;\u003Cbr\u003EDr. Bo Zhu (Advisor) \u2013\u0026nbsp;School of Interactive Computing, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. Greg Turk \u2013\u0026nbsp;School of Interactive Computing, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. Yalong Yang \u2013\u0026nbsp;School of Interactive Computing, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDuowen Chen\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EPh.D. Student\u003C\/p\u003E\u003Cp\u003ESchool of Interactive Computing\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003Cstrong\u003EAbstract:\u0026nbsp;\u003C\/strong\u003EPhysical simulation plays a central role in computer graphics and scientific computing, but existing methods often remain fragmented across scales, representations, and sensory outputs. This thesis develops a physics-grounded approach to world modeling that connects accurate simulation, expressive representation, and multimodal generation. On the simulation side, I present completed work on dynamic interface tracking, solid\u2013fluid coupling, and compressible flow simulation, using neural implicit representations and flow-map-based transport to improve geometric fidelity, long-horizon advection accuracy, and the modeling of complex physical interactions. Building on this foundation, I propose two new directions that extend physical simulation into richer multimodal world representations. The first develops a memory-augmented framework for wildfire world modeling, where physically meaningful simulations are translated into realistic digital-twin videos and combined with retrieval and vision-language reasoning to support environment understanding and structured reporting. The second develops a framework for spatial sound generation in 3D worlds, integrating layered scene reconstruction, semantically grounded sound synthesis, source localization, and physics-guided acoustic rendering to generate audio consistent with scene geometry and listener motion. Taken together, this thesis advances a broader view of world modeling in which physical simulation is not only a tool for reproducing dynamics, but also a foundation for building coherent visual, geometric, and auditory representations across scales and modalities.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EPhysics-Based Simulation for World Modeling Across Scales and Modalities\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Physics-Based Simulation for World Modeling Across Scales and Modalities"}],"uid":"27707","created_gmt":"2026-04-08 18:28:39","changed_gmt":"2026-04-08 18:28:39","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-15T13:00:00-04:00","event_time_end":"2026-04-15T15:00:29-04:00","event_time_end_last":"2026-04-15T15:00:29-04:00","gmt_time_start":"2026-04-15 17:00:00","gmt_time_end":"2026-04-15 19:00:29","gmt_time_end_last":"2026-04-15 19:00:29","rrule":null,"timezone":"America\/New_York"},"location":"Coda C0908 Home Park","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}