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Extended Narrow Band FLIP for Liquid Simulations.

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Title: Extended Narrow Band FLIP for Liquid Simulations.
Authors: Sato, T.1, Wojtan, C.2, Thuerey, N.3, Igarashi, T.1, Ando, R.4
Source: Computer Graphics Forum. May2018, Vol. 37 Issue 2, p169-177. 9p. 4 Color Photographs, 1 Diagram, 3 Charts, 3 Graphs.
Subjects: Computer simulation of fluid dynamics, Computational hydrodynamics software, Particle methods (Numerical analysis), Computer simulation of energy dissipation, Liquid surfaces
Abstract: Abstract: The Fluid Implicit Particle method (FLIP) reduces numerical dissipation by combining particles with grids. To improve performance, the subsequent narrow band FLIP method (NB‐FLIP) uses a FLIP‐based fluid simulation only near the liquid surface and a traditional grid‐based fluid simulation away from the surface. This spatially‐limited FLIP simulation significantly reduces the number of particles and alleviates a computational bottleneck. In this paper, we extend the NB‐FLIP idea even further, by allowing a simulation to transition between a FLIP‐like fluid simulation and a grid‐based simulation in arbitrary locations, not just near the surface. This approach leads to even more savings in memory and computation, because we can concentrate the particles only in areas where they are needed. More importantly, this new method allows us to seamlessly transition to smooth implicit surface geometry wherever the particle‐based simulation is unnecessary. Consequently, our method leads to a practical algorithm for avoiding the noisy surface artifacts associated with particle‐based liquid simulations, while simultaneously maintaining the benefits of a FLIP simulation in regions of dynamic motion. [ABSTRACT FROM AUTHOR]
Copyright of Computer Graphics Forum is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: <searchLink fieldCode="JN" term="%22Computer+Graphics+Forum%22">Computer Graphics Forum</searchLink>. May2018, Vol. 37 Issue 2, p169-177. 9p. 4 Color Photographs, 1 Diagram, 3 Charts, 3 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Computer+simulation+of+fluid+dynamics%22">Computer simulation of fluid dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Computational+hydrodynamics+software%22">Computational hydrodynamics software</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+methods+%28Numerical+analysis%29%22">Particle methods (Numerical analysis)</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation+of+energy+dissipation%22">Computer simulation of energy dissipation</searchLink><br /><searchLink fieldCode="DE" term="%22Liquid+surfaces%22">Liquid surfaces</searchLink>
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  Data: Abstract: The Fluid Implicit Particle method (FLIP) reduces numerical dissipation by combining particles with grids. To improve performance, the subsequent narrow band FLIP method (NB‐FLIP) uses a FLIP‐based fluid simulation only near the liquid surface and a traditional grid‐based fluid simulation away from the surface. This spatially‐limited FLIP simulation significantly reduces the number of particles and alleviates a computational bottleneck. In this paper, we extend the NB‐FLIP idea even further, by allowing a simulation to transition between a FLIP‐like fluid simulation and a grid‐based simulation in arbitrary locations, not just near the surface. This approach leads to even more savings in memory and computation, because we can concentrate the particles only in areas where they are needed. More importantly, this new method allows us to seamlessly transition to smooth implicit surface geometry wherever the particle‐based simulation is unnecessary. Consequently, our method leads to a practical algorithm for avoiding the noisy surface artifacts associated with particle‐based liquid simulations, while simultaneously maintaining the benefits of a FLIP simulation in regions of dynamic motion. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Computer Graphics Forum is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1111/cgf.13351
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        Text: English
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      – SubjectFull: Computer simulation of fluid dynamics
        Type: general
      – SubjectFull: Computational hydrodynamics software
        Type: general
      – SubjectFull: Particle methods (Numerical analysis)
        Type: general
      – SubjectFull: Computer simulation of energy dissipation
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      – SubjectFull: Liquid surfaces
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      – TitleFull: Extended Narrow Band FLIP for Liquid Simulations.
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              Text: May2018
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