Dynamics of droplet and liquid layer penetration in three-dimensional porous media: A lattice Boltzmann study
Dynamics of droplet and liquid layer penetration in three-dimensional porous media: A lattice Boltzmann study
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三维多孔介质中液滴和液层渗透的动力学：格子玻尔兹曼研究
DOI：
10.1063/1.5091481
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发表时间：
2019-04
影响因子：
4.6
通讯作者：
Cheng Lianhua
中科院分区：
文献类型：
--
作者：
Shi Yu;Tang Guihua;Lin Haifei;Zhao Pengxiang;Cheng Lianhua
多孔介质的液体渗透分析在广泛的工业应用中非常重要，包括但不限于复杂土壤中的水渗透、碳氢化合物回收和沉积物中的液体渗漏。由于多孔结构中复杂的流固相互作用，描述多孔介质中两相流的细节具有挑战性。在目前的工作中，我们使用具有大密度比的三维多相晶格玻尔兹曼模型来研究复杂多孔介质中的液滴和液层渗透。研究发现，较低的孔隙率会导致液固界面处的相互作用更大，并导致作用在液滴上的阻力更强。疏水性和亲水性基材都倾向于促进液滴从多孔介质的外部迁移到内部。降低界面张力会增强液体变形并导致更多的液体破裂。由于总动量耗散较大，粘度比增加会导致渗透率降低。即使孔隙率相同，与垂直结构相比，与重力平行的孔隙使阻力相对较小，从而导致更快的渗透和拉伸界面。总的来说，这项工作不仅证明了多相晶格玻尔兹曼方法的能力，而且还揭示了液滴和液层渗透多孔介质的机制。
Liquid penetration analyses for porous media are of great importance in a wide range of industrial applications including, but not limited to, water infiltration in complex soil, hydrocarbon recovery, and liquid seepage through sediments. Depicting the details of two-phase flow in porous media is challenging due to the complex fluid-solid interaction in porous structure. In the present work, we use the three-dimensional multiphase lattice Boltzmann model with a large density ratio to investigate the droplet and liquid layer penetration in complex porous media. It is found that lower porosity leads to larger interactions at the liquid-solid interface and causes stronger drag force acting on the droplet. Both hydrophobic and hydrophilic substrates tend to facilitate droplet migration from the outside to the inside of the porous media. Decreasing the interfacial tension enhances liquid deformation and results in more liquid breakup. Due to the large total momentum dissipation, an increased viscosity ratio causes a reduction of the penetration rate. Even with identical porosity, the pores in parallel to the gravitational force, compared with the perpendicular structure, make the drag force relatively smaller, leading to a faster penetration and stretching interfaces. Overall, this work not only demonstrates the capacity of the multiphase lattice Boltzmann method but also sheds some light on the mechanism of droplet and liquid layer penetration through the porous media.
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影响因子：
2.8
作者：
Chung, Changkwon;Lee, Misook;Lee, Seung Jong
通讯作者：
Lee, Seung Jong
影响因子：
4.7
作者：
Alleborn, N;Raszillier, H
通讯作者：
Raszillier, H
影响因子：
--
作者：
Washburn, EW
通讯作者：
Washburn, EW
DOI：
10.1016/j.camwa.2013.08.005
发表时间：
2014-02
期刊：
Comput. Math. Appl.
影响因子：
--
作者：
M. Taghilou;M. Rahimian
通讯作者：
M. Taghilou;M. Rahimian
影响因子：
6.2
作者：
S. Bhattacharya;D. Gurung
通讯作者：
S. Bhattacharya;D. Gurung