期刊名称：Journal of Computational Science and Technology
电子版ISSN：1881-6894
出版年度：2008
卷号：2
期号：2
页码：307-317
DOI：10.1299/jcst.2.307
出版社：The Japan Society of Mechanical Engineers
摘要：We proposed an improved immiscible lattice BGK model for simulating multiphase flows. The surface tension effect was recovered by introducing a force term based on the appropriate continuum physics. The anti-diffusion scheme in the mixed region was applied to reduce the side-effect of recoloring step and control the thickness of the interface. The simulation of a static bubble was used as a test case. Laplace's law, spurious velocities and isotropy property were examined. The results show that our model has more advantages for simulations of immiscible fluids over the existing immiscible lattice BGK models. Furthermore, the simulations of droplet formation in a Cross-junction microchannel were performed and compared with the experiments. The numerical results show good agreements with the experimental ones for the evolution of the droplet.
