A multiscale approach to mesh-based surface tension flows Journal Article

Author(s): Thürey, Nils; Wojtan, Chris; Gross, Markus; Turk, Greg
Article Title: A multiscale approach to mesh-based surface tension flows
Abstract: We present an approach to simulate flows driven by surface tension based on triangle meshes. Our method consists of two simulation layers: the first layer is an Eulerian method for simulating surface tension forces that is free from typical strict time step constraints. The second simulation layer is a Lagrangian finite element method that simulates sub-grid scale wave details on the fluid surface. The surface wave simulation employs an unconditionally stable, symplectic time integration method that allows for a high propagation speed due to strong surface tension. Our approach can naturally separate the grid-and sub-grid scales based on a volumepreserving mean curvature flow. As our model for the sub-grid dynamics enforces a local conservation of mass, it leads to realistic pinch off and merging effects. In addition to this method for simulating dynamic surface tension effects, we also present an efficient non-oscillatory approximation for capturing damped surface tension behavior. These approaches allow us to efficiently simulate complex phenomena associated with strong surface tension, such as Rayleigh-Plateau instabilities and crown splashes, in a short amount of time.
Keywords: physically based animation; fluid simulation; surface tension
Journal Title: ACM Transactions on Graphics
Volume: 29
Issue 4
ISSN: 1557-7368
Publisher: ACM  
Date Published: 2010-07-01
Start Page: article 48
DOI: 10.1145/1778765.1778785
Open access: no
IST Austria Authors
  1. Chris Wojtan
    34 Wojtan
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