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论文类型：期刊论文

发表时间：2014-02-01

发表刊物：NUMERICAL HEAT TRANSFER PART B-FUNDAMENTALS

收录刊物：SCIE、EI、Scopus

卷号：65

期号：2

页面范围：174-193

ISSN号：1040-7790

摘要：A lattice Boltzmann model for two-phase flow with large density ratio in body-fitted coordinates is proposed and validated through a series of comparison with analytical and published results with good agreement. A single bubble sliding over a curved surface and rising in a channel for different Eotvos numbers is simulated. The results show that during its sliding process, the surface makes the bubble experience large deformation, with both horizontal and vertical velocities fluctuating. As the bubble continues to move, it departs from the surface and starts to rise freely in the channel. With Eotvos number increases, the departure angle decreases.