Numerical simulation of immiscible liquid-liquid flow in microchannels using lattice Boltzmann method
Numerical simulation of immiscible liquid-liquid flow in microchannels using lattice Boltzmann method
复制标题
微通道内不混溶液-液流动的格子玻尔兹曼法数值模拟
DOI：
10.1007/s11426-010-4164-z
复制
发表时间：
2010-12
影响因子：
9.6
通讯作者：
Yin XiaoLong
中科院分区：
文献类型：
--
作者：
Yong YuMei;Yang Chao;Jiang Yi;Joshi, Ameya;Shi YouChun;Yin XiaoLong
采用基于场介质的格子Boltzmann方法对T形结连接的微通道中不相容的煤油-水两相流动进行了数值模拟。首先通过几个静态液滴的试验案例对两相流格子Boltzmann模型进行了验证和改进。重现了之前在Zhaoet等人的实验中确定的煤油-水体系的五种不同的流动模式。数值模拟结果与实验数据的定性和定量吻合证明了该数值方法的有效性。根据基于改进的两相LB模型的数值计算结果，讨论了界面张力和接触角对液滴流动形态和形状的影响。这项工作表明，LBM模拟器是研究微通道内不相容两相流动的一种可行的工具，该工具可以为涉及不相容多相流的各种微流控装置的设计提供切实的指导。
Immiscible kerosene-water two-phase flows in microchannels connected by a T-junction were numerically studied by a Lattice Boltzmann (LB) method based on field mediators. The two-phase flow lattice Boltzmann model was first validated and improved by several test cases of a still droplet. The five distinct flow regimes of the kerosene-water system, previously identified in the experiments from Zhaoet al., were reproduced. The quantitative and qualitative agreement between the simulations and the experimental data show the effectiveness of the numerical method. The roles of the interfacial tension and contact angle on the flow patterns and shapes of droplets were discussed and highlighted according to the numerical results based on the improved two-phase LB model. This work demonstrated that the developed LBM simulator is a viable tool to study immiscible two-phase flows in microchannels, and such a tool could provide tangible guidance for the design of various microfluidic devices that involve immiscible multi-phase flows.
登录
查看更多内容
影响因子：
2.9
作者：
GUNSTENSEN, AK;ROTHMAN, DH;ZANETTI, G
通讯作者：
ZANETTI, G
DOI：
10.1016/j.future.2003.12.006
发表时间：
2004-08
期刊：
Future Gener. Comput. Syst.
影响因子：
--
作者：
P. C. Facin;P. Philippi;L. Santos
通讯作者：
P. C. Facin;P. Philippi;L. Santos
影响因子：
1.6
作者：
L. Santos;F. Wolf;P. Philippi
通讯作者：
L. Santos;F. Wolf;P. Philippi
影响因子：
3.7
作者：
Zhao, Yuchao;Chen, Guangwen;Yuan, Quan
通讯作者：
Yuan, Quan
DOI：
10.1016/0167-2789(91)90279-i
发表时间：
1991-02
期刊：
Physica D: Nonlinear Phenomena
影响因子：
--
作者：
A. K. Gunstensen;D. Rothman
通讯作者：
A. K. Gunstensen;D. Rothman