Improvement of a Simple Coupled VOF with LS (S-CLSVOF) Method

Abstract

In this study, an efficient conversion algorithm of level set function [Formula: see text] from volume fraction [Formula: see text] is developed. This method makes the calculation of [Formula: see text] easier than the conventional CLSVOF method, and the precision of surface tension can be improved by the application of [Formula: see text] The two numerical tests are shown to demonstrate the proposed scheme. As a result of two demonstration tests, it is obtained that (a) the proposed method gives better [Formula: see text] than that of the existing simple coupled method because this can take into account multi-dimensional profiles of [Formula: see text] (b) a surface tension evaluated by using the proposed method can contribute to much lower spurious currents, (c) the proposed method can simulate bubble generation with a similar precision of rigorous CLSVOF method.

Keywords

• Computational fluid dynamics
• Volume of fluid method
• Level set function