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dc.contributor.authorLiu, Sinuoen_US
dc.contributor.authorWang, Xiaokunen_US
dc.contributor.authorBan, Xiaojuanen_US
dc.contributor.authorXu, Yanruien_US
dc.contributor.authorZhou, Jingen_US
dc.contributor.authorKosinka, Jiříen_US
dc.contributor.authorTelea, Alexandru C.en_US
dc.contributor.editorBenes, Bedrich and Hauser, Helwigen_US
dc.date.accessioned2021-02-27T19:02:26Z
dc.date.available2021-02-27T19:02:26Z
dc.date.issued2021
dc.identifier.issn1467-8659
dc.identifier.urihttps://doi.org/10.1111/cgf.14095
dc.identifier.urihttps://diglib.eg.org:443/handle/10.1111/cgf14095
dc.description.abstractA major issue in smoothed particle hydrodynamics (SPH) approaches is the numerical dissipation during the projection process, especially under coarse discretizations. High‐frequency details, such as turbulence and vortices, are smoothed out, leading to unrealistic results. To address this issue, we introduce a vorticity refinement (VR) solver for SPH fluids with negligible computational overhead. In this method, the numerical dissipation of the vorticity field is recovered by the difference between the theoretical and the actual vorticity, so as to enhance turbulence details. Instead of solving the Biot‐Savart integrals, a stream function, which is easier and more efficient to solve, is used to relate the vorticity field to the velocity field. We obtain turbulence effects of different intensity levels by changing an adjustable parameter. Since the vorticity field is enhanced according to the curl field, our method can not only amplify existing vortices, but also capture additional turbulence. Our VR solver is straightforward to implement and can be easily integrated into existing SPH methods.en_US
dc.publisher© 2021 Eurographics ‐ The European Association for Computer Graphics and John Wiley & Sons Ltden_US
dc.subjectphysically based animation
dc.subjectanimation
dc.subjectfluid modeling
dc.subjectanimation
dc.subjectparticle systems
dc.subjectanimation
dc.titleTurbulent Details Simulation for SPH Fluids via Vorticity Refinementen_US
dc.description.seriesinformationComputer Graphics Forum
dc.description.sectionheadersArticles
dc.description.volume40
dc.description.number1
dc.identifier.doi10.1111/cgf.14095
dc.identifier.pages54-67


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