Multiphysic Two-Phase Flow Lattice Boltzmann: Droplets with Realistic Representation of the Interface
Year: 2011
Communications in Computational Physics, Vol. 9 (2011), Iss. 5 : pp. 1414–1430
Abstract
Free energy lattice Boltzmann methods are well suited for the simulation of two phase flow problems. The model for the interface is based on well understood physical grounds. In most cases a numerical interface is used instead of the physical one because of lattice resolution limitations. In this paper we present a framework where we can both follow the droplet behavior in a coarse scale and solve the interface in a fine scale simultaneously. We apply the method for the simulation of a droplet using an interface to diameter size ratio of 1 to 280. In a second simulation, a small droplet coalesces with a 42 times larger droplet producing on it only a small capillary wave that propagates and dissipates.
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Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/10.4208/cicp.031109.100111s
Communications in Computational Physics, Vol. 9 (2011), Iss. 5 : pp. 1414–1430
Published online: 2011-01
AMS Subject Headings: Global Science Press
Copyright: COPYRIGHT: © Global Science Press
Pages: 17
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