MULTISCALE SIMULATION OF MULTIPHASE FLOW USING A COUPLED VOF AND 2-FLUID METHOD

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2023 Vol.28, Issue 4 Preview Page Next Page

MULTISCALE SIMULATION OF MULTIPHASE FLOW USING A COUPLED VOF AND 2-FLUID METHOD VOF와 2-Fluid 복합방법을 이용한 다상유동의 다중스케일 해석: 박재성, 손기헌*
J. Park and G. Son*; 서강대학교 기계공학과

Dept. of Mechanical Engineering, Sogang Univ.

31 December 2023. pp. 92-97

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Abstract

The volume-of-fluid (VOF) method is coupled with the 2-fluid Eulerian model for multiscale simulations of multiphase flows. The algebraic VOF is applied to track large-scale interfaces, whose length scale is comparable to the computational grid size, while the 2-fluid model is applied to subgrid-scale interfaces combining with interfacial force models. The coupled method is further combined with the level-set method to accurately calculate the interface curvatures, and with the mixture model to a seamless connection between the VOF and 2-fluid methods. The method is applied to the Rayleigh-Taylor instability problem where the interface is characterized by large and small length scales. The numerical results demonstrate that the present method is applicable to multiscale simulations of multiphase flows.

Keywords

다상유동(Multiphase Flow)

다중 스케일(Multiscale)

VOF 방법(VOF Method)

2-Fluid 방법(2-Fluid Method)

레벨셋 방법(Level-set 방법)

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