Extended narrow band FLIP for liquid simulations Journal Article

Author(s): Sato, Takahiro; Wojtan, Chris; Thuerey, Nils; Igarashi, Takeo; Ando, Ryoichi
Article Title: Extended narrow band FLIP for liquid simulations
Title Series: Eurographics
Affiliation IST Austria
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.
Keywords: Physical Simulation
Journal Title: Computer Graphics Forum
Volume: 37
Issue 2
ISSN: 0167-7055
Publisher: Wiley-Blackwell  
Date Published: 2018-05-22
Start Page: 169
End Page: 177
Sponsor: ERC Starting Grants 637014 and 638176.
DOI: 10.1111/cgf.13351
Open access: yes (repository)
IST Austria Authors
  1. Chris Wojtan
    34 Wojtan
  2. Ryoichi Ando
    5 Ando
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