[{"publication":"ACM Transactions on Graphics","publist_id":"4434","citation":{"mla":"Bojsen-Hansen, Morten, and Chris Wojtan. “Liquid Surface Tracking with Error Compensation.” <i>ACM Transactions on Graphics</i>, vol. 32, no. 4, 68, ACM, 2013, doi:<a href=\"https://doi.org/10.1145/2461912.2461991\">10.1145/2461912.2461991</a>.","apa":"Bojsen-Hansen, M., &#38; Wojtan, C. (2013). Liquid surface tracking with error compensation. <i>ACM Transactions on Graphics</i>. ACM. <a href=\"https://doi.org/10.1145/2461912.2461991\">https://doi.org/10.1145/2461912.2461991</a>","ista":"Bojsen-Hansen M, Wojtan C. 2013. Liquid surface tracking with error compensation. ACM Transactions on Graphics. 32(4), 68.","ieee":"M. Bojsen-Hansen and C. Wojtan, “Liquid surface tracking with error compensation,” <i>ACM Transactions on Graphics</i>, vol. 32, no. 4. ACM, 2013.","short":"M. Bojsen-Hansen, C. Wojtan, ACM Transactions on Graphics 32 (2013).","chicago":"Bojsen-Hansen, Morten, and Chris Wojtan. “Liquid Surface Tracking with Error Compensation.” <i>ACM Transactions on Graphics</i>. ACM, 2013. <a href=\"https://doi.org/10.1145/2461912.2461991\">https://doi.org/10.1145/2461912.2461991</a>.","ama":"Bojsen-Hansen M, Wojtan C. Liquid surface tracking with error compensation. <i>ACM Transactions on Graphics</i>. 2013;32(4). doi:<a href=\"https://doi.org/10.1145/2461912.2461991\">10.1145/2461912.2461991</a>"},"volume":32,"publisher":"ACM","doi":"10.1145/2461912.2461991","day":"01","pubrep_id":"603","type":"journal_article","file_date_updated":"2020-07-14T12:45:41Z","date_created":"2018-12-11T11:57:50Z","department":[{"_id":"ChWo"}],"article_number":"68","language":[{"iso":"eng"}],"quality_controlled":"1","intvolume":"        32","has_accepted_license":"1","date_updated":"2025-09-29T14:12:53Z","corr_author":"1","external_id":{"isi":["000321840100037"]},"article_processing_charge":"No","month":"07","issue":"4","_id":"2468","year":"2013","oa_version":"Submitted Version","title":"Liquid surface tracking with error compensation","publication_status":"published","author":[{"orcid":"0000-0002-4417-3224","last_name":"Bojsen-Hansen","first_name":"Morten","id":"439F0C8C-F248-11E8-B48F-1D18A9856A87","full_name":"Bojsen-Hansen, Morten"},{"orcid":"0000-0001-6646-5546","last_name":"Wojtan","id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87","full_name":"Wojtan, Christopher J","first_name":"Christopher J"}],"user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","isi":1,"file":[{"date_updated":"2020-07-14T12:45:41Z","file_name":"IST-2016-603-v1+1_liquidError_web.pdf","checksum":"53d905e0180e23ef3e813b969ffed4e1","relation":"main_file","file_size":5813685,"file_id":"4761","access_level":"open_access","creator":"system","date_created":"2018-12-12T10:09:37Z","content_type":"application/pdf"}],"oa":1,"date_published":"2013-07-01T00:00:00Z","scopus_import":"1","abstract":[{"text":"Our work concerns the combination of an Eulerian liquid simulation with a high-resolution surface tracker (e.g. the level set method or a Lagrangian triangle mesh). The naive application of a high-resolution surface tracker to a low-resolution velocity field can produce many visually disturbing physical and topological artifacts that limit their use in practice. We address these problems by defining an error function which compares the current state of the surface tracker to the set of physically valid surface states. By reducing this error with a gradient descent technique, we introduce a novel physics-based surface fairing method. Similarly, by treating this error function as a potential energy, we derive a new surface correction force that mimics the vortex sheet equations. We demonstrate our results with both level set and mesh-based surface trackers.","lang":"eng"}],"status":"public","ddc":["000"]},{"year":"2012","_id":"3118","issue":"4","oa_version":"Submitted Version","title":"Tracking surfaces with evolving topology","alternative_title":["SIGGRAPH"],"article_processing_charge":"No","month":"07","date_published":"2012-07-01T00:00:00Z","scopus_import":"1","abstract":[{"text":"We present a method for recovering a temporally coherent, deforming triangle mesh with arbitrarily changing topology from an incoherent sequence of static closed surfaces. We solve this problem using the surface geometry alone, without any prior information like surface templates or velocity fields. Our system combines a proven strategy for triangle mesh improvement, a robust multi-resolution non-rigid registration routine, and a reliable technique for changing surface mesh topology. We also introduce a novel topological constraint enforcement algorithm to ensure that the output and input always have similar topology. We apply our technique to a series of diverse input data from video reconstructions, physics simulations, and artistic morphs. The structured output of our algorithm allows us to efficiently track information like colors and displacement maps, recover velocity information, and solve PDEs on the mesh as a post process.","lang":"eng"}],"status":"public","acknowledgement":"This work is supported by the SNF fellowship PBEZP2-134464.\r\nWe would like to thank Xiaochen Hu for implementing mesh con- version tools, Duygu Ceylan for helping with the rendering, and Art Tevs for the human performance data comparison. We also thank Nils Thuerey and Christopher Batty for helpful discussions. ","ddc":["000"],"article_type":"original","publication_status":"published","author":[{"orcid":"0000-0002-4417-3224","last_name":"Bojsen-Hansen","first_name":"Morten","full_name":"Bojsen-Hansen, Morten","id":"439F0C8C-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Li","first_name":"Hao","full_name":"Li, Hao"},{"id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87","full_name":"Wojtan, Christopher J","first_name":"Christopher J","orcid":"0000-0001-6646-5546","last_name":"Wojtan"}],"file":[{"checksum":"1e219c5bf4e5552c1290c62eefa5cd60","date_updated":"2020-07-14T12:46:00Z","file_name":"IST-2016-602-v1+1_topoReg.pdf","content_type":"application/pdf","access_level":"open_access","date_created":"2018-12-12T10:18:37Z","creator":"system","file_id":"5359","file_size":44538518,"relation":"main_file"}],"isi":1,"user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","oa":1,"citation":{"ama":"Bojsen-Hansen M, Li H, Wojtan C. Tracking surfaces with evolving topology. <i>ACM Transactions on Graphics</i>. 2012;31(4). doi:<a href=\"https://doi.org/10.1145/2185520.2185549\">10.1145/2185520.2185549</a>","chicago":"Bojsen-Hansen, Morten, Hao Li, and Chris Wojtan. “Tracking Surfaces with Evolving Topology.” <i>ACM Transactions on Graphics</i>. ACM, 2012. <a href=\"https://doi.org/10.1145/2185520.2185549\">https://doi.org/10.1145/2185520.2185549</a>.","short":"M. Bojsen-Hansen, H. Li, C. Wojtan, ACM Transactions on Graphics 31 (2012).","ieee":"M. Bojsen-Hansen, H. Li, and C. Wojtan, “Tracking surfaces with evolving topology,” <i>ACM Transactions on Graphics</i>, vol. 31, no. 4. ACM, 2012.","mla":"Bojsen-Hansen, Morten, et al. “Tracking Surfaces with Evolving Topology.” <i>ACM Transactions on Graphics</i>, vol. 31, no. 4, 53, ACM, 2012, doi:<a href=\"https://doi.org/10.1145/2185520.2185549\">10.1145/2185520.2185549</a>.","apa":"Bojsen-Hansen, M., Li, H., &#38; Wojtan, C. (2012). Tracking surfaces with evolving topology. <i>ACM Transactions on Graphics</i>. ACM. <a href=\"https://doi.org/10.1145/2185520.2185549\">https://doi.org/10.1145/2185520.2185549</a>","ista":"Bojsen-Hansen M, Li H, Wojtan C. 2012. Tracking surfaces with evolving topology. ACM Transactions on Graphics. 31(4), 53."},"volume":31,"pubrep_id":"602","doi":"10.1145/2185520.2185549","publisher":"ACM","day":"01","type":"journal_article","publication":"ACM Transactions on Graphics","publist_id":"3581","intvolume":"        31","quality_controlled":"1","language":[{"iso":"eng"}],"date_updated":"2025-09-30T08:00:23Z","has_accepted_license":"1","external_id":{"isi":["000308250300029"]},"corr_author":"1","date_created":"2018-12-11T12:01:29Z","file_date_updated":"2020-07-14T12:46:00Z","article_number":"53","department":[{"_id":"ChWo"}]},{"ddc":["000"],"conference":{"location":"Aire-la-Ville, Switzerland","name":"SCA: ACM SIGGRAPH/Eurographics Symposium on Computer animation","end_date":"2012-07-31","start_date":"2012-07-29"},"acknowledgement":"This work was partially funded by NSF grants CCF-0811485 and IIS-1130934. We would like to thank Scanline VFX for additional funding. We would like to thank Jie Tan as well as our anonymous reviewers for their useful suggestions and feedback.","abstract":[{"lang":"eng","text":"We present an approach for artist-directed animation of liquids using multiple levels of control over the simulation, ranging from the overall tracking of desired shapes to highly detailed secondary effects such as dripping streams, separating sheets of fluid, surface waves and ripples. The first portion of our technique is a volume preserving morph that allows the animator to produce a plausible fluid-like motion from a sparse set of control meshes. By rasterizing the resulting control meshes onto the simulation grid, the mesh velocities act as boundary conditions during the projection step of the fluid simulation. We can then blend this motion together with uncontrolled fluid velocities to achieve a more relaxed control over the fluid that captures natural inertial effects. Our method can produce highly detailed liquid surfaces with control over sub-grid details by using a mesh-based surface tracker on top of a coarse grid-based fluid simulation. We can create ripples and waves on the fluid surface attracting the surface mesh to the control mesh with spring-like forces and also by running a wave simulation over the surface mesh. Our video results demonstrate how our control scheme can be used to create animated characters and shapes that are made of water.\r\n"}],"date_published":"2012-07-29T00:00:00Z","scopus_import":1,"status":"public","user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","file":[{"date_updated":"2020-07-14T12:46:00Z","file_name":"IST-2016-600-v1+1_ControllingLiquids_Preprint.pdf","checksum":"babda64c24cf90a4d05ae86d712bed08","file_id":"4877","file_size":4939370,"relation":"main_file","content_type":"application/pdf","access_level":"open_access","date_created":"2018-12-12T10:11:23Z","creator":"system"}],"oa":1,"publication_status":"published","author":[{"first_name":"Karthik","full_name":"Raveendran, Karthik","last_name":"Raveendran"},{"last_name":"Thuerey","full_name":"Thuerey, Nils","first_name":"Nils"},{"orcid":"0000-0001-6646-5546","last_name":"Wojtan","first_name":"Christopher J","full_name":"Wojtan, Christopher J","id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Turk","full_name":"Turk, Greg","first_name":"Greg"}],"title":"Controlling liquids using meshes","_id":"3119","year":"2012","oa_version":"Submitted Version","month":"07","has_accepted_license":"1","date_updated":"2023-02-23T11:13:07Z","quality_controlled":"1","language":[{"iso":"eng"}],"date_created":"2018-12-11T12:01:30Z","file_date_updated":"2020-07-14T12:46:00Z","department":[{"_id":"ChWo"}],"publisher":"ACM","day":"29","page":"255 - 264","pubrep_id":"600","type":"conference","related_material":{"link":[{"url":"http://dl.acm.org/citation.cfm?id=2422393","relation":"table_of_contents"}]},"citation":{"short":"K. Raveendran, N. Thuerey, C. Wojtan, G. Turk, in:, Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Computer Animation, ACM, 2012, pp. 255–264.","ieee":"K. Raveendran, N. Thuerey, C. Wojtan, and G. Turk, “Controlling liquids using meshes,” in <i>Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Computer Animation</i>, Aire-la-Ville, Switzerland, 2012, pp. 255–264.","apa":"Raveendran, K., Thuerey, N., Wojtan, C., &#38; Turk, G. (2012). Controlling liquids using meshes. In <i>Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Computer Animation</i> (pp. 255–264). Aire-la-Ville, Switzerland: ACM.","mla":"Raveendran, Karthik, et al. “Controlling Liquids Using Meshes.” <i>Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Computer Animation</i>, ACM, 2012, pp. 255–64.","ista":"Raveendran K, Thuerey N, Wojtan C, Turk G. 2012. Controlling liquids using meshes. Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Computer Animation. SCA: ACM SIGGRAPH/Eurographics Symposium on Computer animation, 255–264.","ama":"Raveendran K, Thuerey N, Wojtan C, Turk G. Controlling liquids using meshes. In: <i>Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Computer Animation</i>. ACM; 2012:255-264.","chicago":"Raveendran, Karthik, Nils Thuerey, Chris Wojtan, and Greg Turk. “Controlling Liquids Using Meshes.” In <i>Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Computer Animation</i>, 255–64. ACM, 2012."},"publist_id":"3580","publication":"Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Computer Animation"},{"publication":"Computer Graphics Forum","publist_id":"3576","volume":31,"citation":{"chicago":"Yu, Jihun, Chris Wojtan, Greg Turk, and Chee Yap. “Explicit Mesh Surfaces for Particle Based Fluids.” In <i>Computer Graphics Forum</i>, 31:815–24. Wiley, 2012. <a href=\"https://doi.org/10.1111/j.1467-8659.2012.03062.x\">https://doi.org/10.1111/j.1467-8659.2012.03062.x</a>.","ama":"Yu J, Wojtan C, Turk G, Yap C. Explicit mesh surfaces for particle based fluids. In: <i>Computer Graphics Forum</i>. Vol 31. Wiley; 2012:815-824. doi:<a href=\"https://doi.org/10.1111/j.1467-8659.2012.03062.x\">10.1111/j.1467-8659.2012.03062.x</a>","ieee":"J. Yu, C. Wojtan, G. Turk, and C. Yap, “Explicit mesh surfaces for particle based fluids,” in <i>Computer Graphics Forum</i>, Cagliari, Sardinia, Italy, 2012, vol. 31, no. 2, pp. 815–824.","apa":"Yu, J., Wojtan, C., Turk, G., &#38; Yap, C. (2012). Explicit mesh surfaces for particle based fluids. In <i>Computer Graphics Forum</i> (Vol. 31, pp. 815–824). Cagliari, Sardinia, Italy: Wiley. <a href=\"https://doi.org/10.1111/j.1467-8659.2012.03062.x\">https://doi.org/10.1111/j.1467-8659.2012.03062.x</a>","ista":"Yu J, Wojtan C, Turk G, Yap C. 2012. Explicit mesh surfaces for particle based fluids. Computer Graphics Forum. EUROGRAPHICS: Conference on European Association for Computer Graphics, Eurographics, vol. 31, 815–824.","mla":"Yu, Jihun, et al. “Explicit Mesh Surfaces for Particle Based Fluids.” <i>Computer Graphics Forum</i>, vol. 31, no. 2, Wiley, 2012, pp. 815–24, doi:<a href=\"https://doi.org/10.1111/j.1467-8659.2012.03062.x\">10.1111/j.1467-8659.2012.03062.x</a>.","short":"J. Yu, C. Wojtan, G. Turk, C. Yap, in:, Computer Graphics Forum, Wiley, 2012, pp. 815–824."},"type":"conference","page":"815 - 824","pubrep_id":"601","day":"01","publisher":"Wiley","doi":"10.1111/j.1467-8659.2012.03062.x","department":[{"_id":"ChWo"}],"file_date_updated":"2020-07-14T12:46:00Z","date_created":"2018-12-11T12:01:31Z","publication_identifier":{"eissn":["1467-8659"],"issn":["0167-7055"]},"intvolume":"        31","language":[{"iso":"eng"}],"quality_controlled":"1","external_id":{"isi":["000306182500009"]},"date_updated":"2025-09-30T07:58:32Z","has_accepted_license":"1","alternative_title":["Eurographics"],"article_processing_charge":"No","month":"05","oa_version":"Submitted Version","year":"2012","_id":"3123","issue":"2","title":"Explicit mesh surfaces for particle based fluids","author":[{"last_name":"Yu","full_name":"Yu, Jihun","first_name":"Jihun"},{"id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87","full_name":"Wojtan, Christopher J","first_name":"Christopher J","orcid":"0000-0001-6646-5546","last_name":"Wojtan"},{"last_name":"Turk","full_name":"Turk, Greg","first_name":"Greg"},{"first_name":"Chee","full_name":"Yap, Chee","last_name":"Yap"}],"publication_status":"published","oa":1,"file":[{"content_type":"application/pdf","date_created":"2018-12-12T10:14:39Z","creator":"system","access_level":"open_access","file_id":"5092","relation":"main_file","file_size":5740527,"checksum":"acb325dd1e31859bedd30e013f61d0b9","file_name":"IST-2016-601-v1+1_meshSPH.pdf","date_updated":"2020-07-14T12:46:00Z"}],"isi":1,"user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","status":"public","abstract":[{"text":"We introduce the idea of using an explicit triangle mesh to track the air/fluid interface in a smoothed particle hydrodynamics (SPH) simulator. Once an initial surface mesh is created, this mesh is carried forward in time using nearby particle velocities to advect the mesh vertices. The mesh connectivity remains mostly unchanged across time-steps; it is only modified locally for topology change events or for the improvement of triangle quality. In order to ensure that the surface mesh does not diverge from the underlying particle simulation, we periodically project the mesh surface onto an implicit surface defined by the physics simulation. The mesh surface gives us several advantages over previous SPH surface tracking techniques. We demonstrate a new method for surface tension calculations that clearly outperforms the state of the art in SPH surface tension for computer graphics. We also demonstrate a method for tracking detailed surface information (like colors) that is less susceptible to numerical diffusion than competing techniques. Finally, our temporally-coherent surface mesh allows us to simulate high-resolution surface wave dynamics without being limited by the particle resolution of the SPH simulation.","lang":"eng"}],"scopus_import":"1","date_published":"2012-05-01T00:00:00Z","acknowledgement":"This work was funded by NSF grant IIS-1017014 and CCF- 0917093.","conference":{"location":"Cagliari, Sardinia, Italy","end_date":"2012-05-18","name":"EUROGRAPHICS: Conference on European Association for Computer Graphics","start_date":"2012-05-13"},"ddc":["000"]},{"pubrep_id":"599","day":"07","publisher":"ACM","doi":"10.1145/2037636.2037644","type":"conference","citation":{"ieee":"C. Wojtan, M. Müller Fischer, and T. Brochu, “Liquid simulation with mesh-based surface tracking,” presented at the SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques, Vancouver, BC, Canada, 2011.","apa":"Wojtan, C., Müller Fischer, M., &#38; Brochu, T. (2011). Liquid simulation with mesh-based surface tracking. Presented at the SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques, Vancouver, BC, Canada: ACM. <a href=\"https://doi.org/10.1145/2037636.2037644\">https://doi.org/10.1145/2037636.2037644</a>","ista":"Wojtan C, Müller Fischer M, Brochu T. 2011. Liquid simulation with mesh-based surface tracking. SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques, 8.","mla":"Wojtan, Chris, et al. <i>Liquid Simulation with Mesh-Based Surface Tracking</i>. 8, ACM, 2011, doi:<a href=\"https://doi.org/10.1145/2037636.2037644\">10.1145/2037636.2037644</a>.","short":"C. Wojtan, M. Müller Fischer, T. Brochu, in:, ACM, 2011.","chicago":"Wojtan, Chris, Matthias Müller Fischer, and Tyson Brochu. “Liquid Simulation with Mesh-Based Surface Tracking.” ACM, 2011. <a href=\"https://doi.org/10.1145/2037636.2037644\">https://doi.org/10.1145/2037636.2037644</a>.","ama":"Wojtan C, Müller Fischer M, Brochu T. Liquid simulation with mesh-based surface tracking. In: ACM; 2011. doi:<a href=\"https://doi.org/10.1145/2037636.2037644\">10.1145/2037636.2037644</a>"},"publist_id":"3344","date_updated":"2024-10-09T20:54:35Z","has_accepted_license":"1","corr_author":"1","language":[{"iso":"eng"}],"quality_controlled":"1","file_date_updated":"2020-07-14T12:46:06Z","date_created":"2018-12-11T12:02:31Z","article_number":"8","department":[{"_id":"ChWo"}],"title":"Liquid simulation with mesh-based surface tracking","year":"2011","_id":"3297","oa_version":"Published Version","month":"08","conference":{"location":"Vancouver, BC, Canada","end_date":"2011-08-11","name":"SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques","start_date":"2011-08-07"},"ddc":["000"],"abstract":[{"lang":"eng","text":"Animating detailed liquid surfaces has always been a challenge for computer graphics researchers and visual effects artists. Over the past few years, researchers in this field have focused on mesh-based surface tracking to synthesize extremely detailed liquid surfaces as efficiently as possible. This course provides a solid understanding of the steps required to create a fluid simulator with a mesh-based liquid surface.\r\n\r\nThe course begins with an overview of several existing liquid-surface-tracking techniques and the pros and cons of each method. Then it explains how to embed a triangle mesh into a finite-difference-based fluid simulator and describes several methods for allowing the liquid surface to merge together or break apart. The final section showcases the benefits and further applications of a mesh-based liquid surface, highlighting state-of-the-art methods for tracking colors and textures, maintaining liquid volume, preserving small surface features, and simulating realistic surface-tension waves."}],"date_published":"2011-08-07T00:00:00Z","scopus_import":1,"status":"public","file":[{"date_updated":"2020-07-14T12:46:06Z","file_name":"IST-2016-599-v1+1_meshyFluidsCourseSIGGRAPH2011.pdf","checksum":"8d508ad7c82f50978acbaa4170ee0a75","relation":"main_file","file_size":34672096,"file_id":"5018","access_level":"open_access","date_created":"2018-12-12T10:13:34Z","creator":"system","content_type":"application/pdf"}],"user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","oa":1,"publication_status":"published","author":[{"last_name":"Wojtan","orcid":"0000-0001-6646-5546","full_name":"Wojtan, Christopher J","id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87","first_name":"Christopher J"},{"full_name":"Müller Fischer, Matthias","first_name":"Matthias","last_name":"Müller Fischer"},{"last_name":"Brochu","first_name":"Tyson","full_name":"Brochu, Tyson"}]},{"language":[{"iso":"eng"}],"quality_controlled":"1","has_accepted_license":"1","editor":[{"first_name":"Stephen","full_name":"Spencer, Stephen","last_name":"Spencer"}],"date_updated":"2023-02-23T11:21:05Z","file_date_updated":"2020-07-14T12:46:06Z","date_created":"2018-12-11T12:02:32Z","department":[{"_id":"ChWo"}],"citation":{"ama":"Raveendran K, Wojtan C, Turk G. Hybrid smoothed particle hydrodynamics. In: Spencer S, ed. ACM; 2011:33-42. doi:<a href=\"https://doi.org/10.1145/2019406.2019411\">10.1145/2019406.2019411</a>","chicago":"Raveendran, Karthik, Chris Wojtan, and Greg Turk. “Hybrid Smoothed Particle Hydrodynamics.” edited by Stephen Spencer, 33–42. ACM, 2011. <a href=\"https://doi.org/10.1145/2019406.2019411\">https://doi.org/10.1145/2019406.2019411</a>.","short":"K. Raveendran, C. Wojtan, G. Turk, in:, S. Spencer (Ed.), ACM, 2011, pp. 33–42.","ista":"Raveendran K, Wojtan C, Turk G. 2011. Hybrid smoothed particle hydrodynamics. SCA: ACM SIGGRAPH/Eurographics Symposium on Computer animation, 33–42.","apa":"Raveendran, K., Wojtan, C., &#38; Turk, G. (2011). Hybrid smoothed particle hydrodynamics. In S. Spencer (Ed.) (pp. 33–42). Presented at the SCA: ACM SIGGRAPH/Eurographics Symposium on Computer animation, Vancouver, Canada: ACM. <a href=\"https://doi.org/10.1145/2019406.2019411\">https://doi.org/10.1145/2019406.2019411</a>","mla":"Raveendran, Karthik, et al. <i>Hybrid Smoothed Particle Hydrodynamics</i>. Edited by Stephen Spencer, ACM, 2011, pp. 33–42, doi:<a href=\"https://doi.org/10.1145/2019406.2019411\">10.1145/2019406.2019411</a>.","ieee":"K. Raveendran, C. Wojtan, and G. Turk, “Hybrid smoothed particle hydrodynamics,” presented at the SCA: ACM SIGGRAPH/Eurographics Symposium on Computer animation, Vancouver, Canada, 2011, pp. 33–42."},"publisher":"ACM","doi":"10.1145/2019406.2019411","day":"05","pubrep_id":"598","page":"33 - 42","type":"conference","publist_id":"3343","abstract":[{"text":"We present a new algorithm for enforcing incompressibility for Smoothed Particle Hydrodynamics (SPH) by preserving uniform density across the domain. We propose a hybrid method that uses a Poisson solve on a coarse grid to enforce a divergence free velocity field, followed by a local density correction of the particles. This avoids typical grid artifacts and maintains the Lagrangian nature of SPH by directly transferring pressures onto particles. Our method can be easily integrated with existing SPH techniques such as the incompressible PCISPH method as well as weakly compressible SPH by adding an additional force term. We show that this hybrid method accelerates convergence towards uniform density and permits a significantly larger time step compared to earlier approaches while producing similar results. We demonstrate our approach in a variety of scenarios with significant pressure gradients such as splashing liquids.","lang":"eng"}],"scopus_import":1,"date_published":"2011-08-05T00:00:00Z","status":"public","ddc":["000"],"conference":{"location":"Vancouver, Canada","end_date":"2011-08-07","name":"SCA: ACM SIGGRAPH/Eurographics Symposium on Computer animation","start_date":"2011-08-05"},"publication_status":"published","author":[{"first_name":"Karthik","full_name":"Raveendran, Karthik","last_name":"Raveendran"},{"first_name":"Christopher J","full_name":"Wojtan, Christopher J","id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87","last_name":"Wojtan","orcid":"0000-0001-6646-5546"},{"last_name":"Turk","first_name":"Greg","full_name":"Turk, Greg"}],"user_id":"4435EBFC-F248-11E8-B48F-1D18A9856A87","file":[{"checksum":"6579d27709946e0eefbfa60a456b4913","file_name":"IST-2016-598-v1+1_HybridSPH_Preprint.pdf","date_updated":"2020-07-14T12:46:06Z","date_created":"2018-12-12T10:09:44Z","creator":"system","access_level":"open_access","content_type":"application/pdf","relation":"main_file","file_size":2536216,"file_id":"4769"}],"oa":1,"_id":"3298","year":"2011","oa_version":"Submitted Version","title":"Hybrid smoothed particle hydrodynamics","month":"08"}]