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A Numerical Surface Tension Model for Two-Phase Flow Simulations

Lam, K. W. (2009) A Numerical Surface Tension Model for Two-Phase Flow Simulations. Master's Thesis / Essay, Mathematics.

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Abstract

In two-phase flow simulations (for example air and water) the description of the fluid interface is important. For these simulations we have used a surface tension model. From literature we know that the approximation of the surface curvature is important, for badly approximated surface curvatures will lead to spurious (unphysical) velocities. To track the surface interface we use a Volume of Fluid (VoF) method. Some researchers (Brackbill et al, Williams et al) say that this method will not work properly, so they modified it. By looking at the structure of our model, we thought that VoF would also work unmodified. We have tested our methods on a stationary bubble case, because then spurious currents are best seen. The goal is to reduce these spurious currents, because they should not occur. During the talk we will compare results of our methods with results of the method that is being used in ComFlo.

Item Type: Thesis (Master's Thesis / Essay)
Degree programme: Mathematics
Thesis type: Master's Thesis / Essay
Language: English
Date Deposited: 15 Feb 2018 07:29
Last Modified: 15 Feb 2018 07:29
URI: http://fse.studenttheses.ub.rug.nl/id/eprint/8704

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