Precise simulation of gas-water interface and its application to mass transport.

在本研究中，我尝试用颗粒法模拟湿、干过程中气/水界面形态的变化，并分析其对多孔介质中气体扩散系数的影响。我使用了粒子方法的一种变体，移动粒子半隐式（MPS）。利用这种方法，我成功地模拟了孔喉的润湿，孔喉是在三个球体之间形成的；然而，模拟的气/水界面形状远不能令人满意。于是，我开始尝试一种基于几何的计算界面的新方法。

In this study, I tried to apply the particle method for simulating the change in the shape of gas/water interface during wetting and drying processes, and in addition analyze its effect on the gas diffusion coefficient in porous media.I used one of the variation of the particle method, moving-particle-semi-implicit (MPS). With this method, I successfully simulated the wetting of the pore throat, which is formed among three spheres; however, the simulated shape of the gas/water interface was far from satisfaction. So, I began to try a new method for calculating the interface based on geometry.