An improved level set approach to the simulation of drop and bubble motion
An improved level set approach to the simulation of drop and bubble motion
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发表时间：
2002-06
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通讯作者：
Chao Yang;Z. Mao
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作者：
Chao Yang;Z. Mao
提出了一种改进的水平集方法，用于计算具有显着变形自由界面的不可压缩两相流。控制体积公式与压力关联方程一致半隐式方法（SIMPLE C）算法相结合，用于求解交错网格上的控制方程。有关计算网格、接口更新、重新初始化程序等的多项改进经过测试，发现可有效促进收敛性和数值稳定性。对具有大密度比、粘度比和表面张力的液体中气泡或液滴的运动进行了数值模拟。计算结果与报道的实验数据非常吻合。
An improved level set approach for computing the incompressible two-phase flow with significantly deformed free interface is presented. The control volume formulation with the semi-implicit method for pressure-linked equations consistent (SIMPLE C) algorithm incorporated is used to solve the governing equations on a staggered grid. Several improvements concerning the computational grid, interface update, reinitialization procedure etc, are tested and found to be effective in promoting the convergence and numerical stability. The motion of a bubble or drop in a liquid with large density ratio, viscosity ratio and surface tension is numerically simulated. The computational results are in good agreement with the reported experimental data.