Study on the meniscus-induced motion of droplets and bubbles by a three-phase Lattice Boltzmann model
Study on the meniscus-induced motion of droplets and bubbles by a three-phase Lattice Boltzmann model
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三相格子玻尔兹曼模型研究弯液面引起的液滴和气泡运动
DOI：
10.1016/j.ces.2017.10.025
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发表时间：
2018-02
影响因子：
4.7
通讯作者：
Sukop M.C.
中科院分区：
文献类型：
--
作者：
Wei Bei;Huang Haibo;Hou Jian;Sukop M.C.
与伪势晶格玻尔兹曼模型在两个分量上的典型应用相比，本文对三分量的Shan-Chen模型进行了定量验证和应用。首先，对三相分离、半月板诱导气泡运动和三相分层流三种情况进行了定性和定量验证。针对三相晶格玻尔兹曼模型，提出了一种控制液滴在界面上模拟接触角的方案。详细研究了液滴形状、重力强度、液滴大小和半月板曲率对液滴和气泡自发运动的影响。研究发现，在没有重力的情况下，水滴在“头”大、“腹”小的情况下，往往会向凹向上的半月板壁上移动。当液滴或气泡的密度相对较小时，重力可能增强而不是抑制液滴向壁面的运动。最后，较小的液滴尺寸和较大的半月板曲率增强了向壁面的自发运动。这些结论与实际应用有关，如水处理、溢油修复和基于液滴的微流体。
In contrast to typical applications of the pseudopotential Lattice Boltzmann model to two components, quantitative validations and applications for three-component Shan-Chen model are performed here. First, the qualitative and quantitative validations for the following three cases were performed, i.e., three-phase separation, meniscus-induced bubble movement, and the three-phase layered flow. A scheme to control the simulated contact angle of droplets on the interface is provided for the three fluid phase Lattice Boltzmann model. The effects of droplet shape, the strength of gravity, droplet size, and meniscus curvature for the spontaneous motion of droplets and bubbles are investigated in detail. It is found that without gravity, droplets tend to move to the wall on a concave upwards meniscus when they have a big “head” and a small “belly”. Gravity may enhance rather than inhibit the motion towards the wall when the density of the droplet or bubble is relatively small. Finally, smaller droplet size and larger meniscus curvatures enhance the spontaneous movement towards a wall. The conclusions are relevant to practical applications such as water treatment, oil spill remediation, and droplet-based microfluidics.
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DOI：
10.1098/rspa.2009.0227
发表时间：
2009-03
期刊：
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
影响因子：
--
作者：
M. Gillard;P. Sutcliffe
通讯作者：
M. Gillard;P. Sutcliffe
影响因子：
1.9
作者：
M. Ngachin;R. Galdamez;S. Gokaltun;M. Sukop
通讯作者：
M. Ngachin;R. Galdamez;S. Gokaltun;M. Sukop
DOI：
10.1103/physreve.88.013306
发表时间：
2013-05
期刊：
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子：
--
作者：
M. Sbragaglia;D. Belardinelli
通讯作者：
M. Sbragaglia;D. Belardinelli
DOI：
10.1016/b978-0-12-811718-7.00020-4
发表时间：
2017-10
期刊：
--
影响因子：
--
作者：
A. Montessori;I. Halliday;M. Lauricella;S. Lishchuk;G. Pontrelli;T. Spencer;S. Succi
通讯作者：
A. Montessori;I. Halliday;M. Lauricella;S. Lishchuk;G. Pontrelli;T. Spencer;S. Succi
DOI：
10.1103/physreve.93.033305
发表时间：
2015-11
期刊：
Physical review. E
影响因子：
--
作者：
C. Semprebon;T. Krüger;H. Kusumaatmaja
通讯作者：
C. Semprebon;T. Krüger;H. Kusumaatmaja