An Efficient Hybrid Incompressible SPH Solver with Interface Handling for Boundary Conditions

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dc.contributor.authorTakahashi, Tetsuyaen_US
dc.contributor.authorDobashi, Yoshinorien_US
dc.contributor.authorNishita, Tomoyukien_US
dc.contributor.authorLin, Ming C.en_US
dc.contributor.editorChen, Min and Benes, Bedrichen_US
dc.date.accessioned2018-04-05T12:48:42Z
dc.date.available2018-04-05T12:48:42Z
dc.date.issued2018
dc.description.abstractWe propose a hybrid smoothed particle hydrodynamics solver for efficientlysimulating incompressible fluids using an interface handling method for boundary conditions in the pressure Poisson equation. We blend particle density computed with one smooth and one spiky kernel to improve the robustness against both fluid–fluid and fluid–solid collisions. To further improve the robustness and efficiency, we present a new interface handling method consisting of two components: free surface handling for Dirichlet boundary conditions and solid boundary handling for Neumann boundary conditions. Our free surface handling appropriately determines particles for Dirichlet boundary conditions using Jacobi‐based pressure prediction while our solid boundary handling introduces a new term to ensure the solvability of the linear system. We demonstrate that our method outperforms the state‐of‐the‐art particle‐based fluid solvers.We propose a hybrid smoothed particle hydrodynamics solver for efficiently simulating incompressible fluids using an interface handling method for boundary conditions in the pressure Poisson equation. We blend particle density computed with one smooth and one spiky kernel to improve the robustness against both fluid–fluid and fluid–solid collisions.To further improve the robustness and efficiency, we present a new interface handling method consisting of two components: free surface handling for Dirichlet boundary conditions and solid boundary handling for Neumann boundary conditions.en_US
dc.description.number1
dc.description.sectionheadersArticles
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume37
dc.identifier.doi10.1111/cgf.13292
dc.identifier.issn1467-8659
dc.identifier.pages313-324
dc.identifier.urihttps://doi.org/10.1111/cgf.13292
dc.identifier.urihttps://diglib.eg.org:443/handle/10.1111/cgf13292
dc.publisher© 2018 The Eurographics Association and John Wiley & Sons Ltd.en_US
dc.subjectSPH
dc.subjectincompressible fluid
dc.subjectboundary condition
dc.subjectI.3.5 [Computer Graphics]: Computational Geometry and Object Modelling Physically based modelling I.3.7 [Computer Graphics]: Three‐Dimensional Graphics and Realism Animation
dc.titleAn Efficient Hybrid Incompressible SPH Solver with Interface Handling for Boundary Conditionsen_US
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