Simulation of capillary-driven kinetics with multi-phase-field and lattice Boltzmann method
Simulation of capillary-driven kinetics with multi-phase-field and lattice Boltzmann method
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DOI：
10.1088/1361-651x/ab9bb3
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发表时间：
2019-02
影响因子：
1.8
通讯作者：
Raphael Schiedung;M. Tegeler;D. Medvedev;F. Varnik
中科院分区：
文献类型：
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作者：
Raphael Schiedung;M. Tegeler;D. Medvedev;F. Varnik
我们提出了一种基于多相场和格子Boltzmann方法的联合计算方法来计算毛细作用力作用下固体颗粒的运动。通过与毛细管桥连接的两个平行板运动的解析解的比较，分析了该方法的精度。然后将该方法用于研究通过毛细管桥连接的多个球形固体的动力学。连接球体的液量是不同的，由此产生的液体形态对球体动力学的影响进行了研究。结果表明，该方法适用于同时考虑相变和毛细管驱动刚体运动的液相烧结过程的研究。
We propose a combined computational approach based on the multi-phase-field and the lattice Boltzmann method for the motion of solid particles under the action of capillary forces. The accuracy of the method is analyzed by comparison with the analytic solutions for the motion of two parallel plates of finite extension connected by a capillary bridge. The method is then used to investigate the dynamics of multiple spherical solid bodies connected via capillary bridges. The amount of liquid connecting the spheres is varied, and the influence of the resulting liquid-morphology on their dynamics is investigated. It is shown that the method is suitable for a study of liquid-phase sintering which includes both phase transformation and capillary driven rigid body motion.