Actions for Volume tracking of interfaces having surface tension in two and three dimensions [electronic resource].

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Volume tracking of interfaces having surface tension in two and three dimensions [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1996.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
20 pages : digital, PDF file
Additional Creators
Los Alamos National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Solution algorithms are presented for tracking interfaces with piecewise linear (PLIC) volume-of-fluid (VOF) methods on fixed (Eulerian) two-dimensional (2-D) structured and three-dimensional (3-D) structured and unstructured grids. We review the theory of volume tracking methods, derive appropriate volume evolution equations, identify and present solutions to the basic geometric functions needed for interface reconstruction and volume fluxing, and provide detailed algorithm templates for modern 2-D and 3-D PLIC VOF interface tracking methods. We discuss some key outstanding issues for PLIC VOF methods, namely the method used for time integration of fluid volumes (operator splitting, unsplit, Runge-Kutta, etc.) and the estimation of interface normals. We also present our latest developments in the continuum surface force (CSF) model for surface tension, namely extension to 3-D and variable surface tension effects. We identify and focus on key outstanding CSF model issues that become especially critical on fine meshes with high density ratio interfacial flows, namely the surface delta function approximation, the estimation of interfacial curvature, and the continuum surface force scaling and/or smoothing model. Numerical results in two and three dimensions are used to illustrate the properties of these methods.
Report Numbers
E 1.99:la-ur--96-0088
E 1.99: conf-960162--3
conf-960162--3
la-ur--96-0088
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
03/01/1996.
"la-ur--96-0088"
" conf-960162--3"
"DE96007178"
34. American Institute of Aeronautics and Astronautics (AIAA) aerospace sciences meeting, Reno, NV (United States), 15-18 Jan 1996.
Kothe, D.B.; Rider, W.J.; Mosso, S.J.; Brock, J.S.; Hochstein, J.I.
Funding Information
W-7405-ENG-36
View MARC record | catkey: 14113250