Incompressible SPH using the Divergence-Free Condition

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dc.contributor.authorKang, Nahyupen_US
dc.contributor.authorSagong, Donghoonen_US
dc.contributor.editorJ. Keyser, Y. J. Kim, and P. Wonkaen_US
dc.date.accessioned2015-03-03T12:53:19Z
dc.date.available2015-03-03T12:53:19Z
dc.date.issued2014en_US
dc.description.abstractIn this paper, we present a novel SPH framework to simulate incompressible fluid that satisfies both the divergencefree condition and the density-invariant condition. In our framework, the two conditions are applied separately. First, the divergence-free condition is enforced when solving the momentum equation. Later, the density-invariant condition is applied after the time integration of the particle positions. Our framework is a purely Lagrangian approach so that no auxiliary grid is required. Compared to the previous density-invariant based SPH methods, the proposed method is more accurate due to the explicit satisfaction of the divergence-free condition. We also propose a modified boundary particle method for handling the free-slip condition. In addition, two simple but effective methods are proposed to reduce the particle clumping artifact induced by the density-invariant condition.en_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.identifier.issn1467-8659en_US
dc.identifier.urihttps://doi.org/10.1111/cgf.12490en_US
dc.publisherThe Eurographics Association and John Wiley and Sons Ltd.en_US
dc.titleIncompressible SPH using the Divergence-Free Conditionen_US
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