Numerical study of drop behavior in a pore space

Fenglei Huang; Zhe Chen; Zhipeng Li; Zhengming Gao; J. J. Derksen; Alexandra Komrakova

doi:10.1016/j.ces.2020.116351

Numerical study of drop behavior in a pore space

Fenglei Huang, Zhe Chen, Zhipeng Li, Zhengming Gao^* (Corresponding Author), J. J. Derksen, Alexandra Komrakova^* (Corresponding Author)

^*Corresponding author for this work

Engineering

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

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Abstract

Deformation and breakup of a liquid drop immersed in another immiscible liquid and flowing through a single pore has been studied numerically using a conservative phase-field lattice Boltzmann method. Several benchmarks were
conducted to validate the code, including the recovery of Laplace pressure, the layered flow of two immiscible liquids, and the implementation of wetting boundary conditions on a curved surface. Gravity-driven motion of a drop through the pore space was qualitatively compared to the available experimental results. Quantitative assessment of the pressure field across the interface of the moving and deforming drop was performed. Our results show that high Weber number due to low surface tension and low Reynolds number due to low velocity of the continuous liquid promote drop breakage. More viscous drops break easier than less viscous drops. We present the phase charts (Weber vs capillary number) and the critical conditions (Weber as a function of Reynolds number) of drop breakage.

Original language	English
Article number	116351
Number of pages	17
Journal	Chemical Engineering Science
Volume	233
Early online date	8 Dec 2020
DOIs	https://doi.org/10.1016/j.ces.2020.116351
Publication status	Published - 6 Apr 2021

Bibliographical note

Acknowledgements
The authors appreciatively acknowledge the financial support from the National Key Research and Development Program of China (No.2016YFB0302801) and the China Scholarship Council. This research has been enabled by the use of computing resources provided by Compute Canada.

Keywords

Pore space
Liquid-liquid dispersion
Drop breakup
Phase-field method

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Cite this

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title = "Numerical study of drop behavior in a pore space",

abstract = "Deformation and breakup of a liquid drop immersed in another immiscible liquid and flowing through a single pore has been studied numerically using a conservative phase-field lattice Boltzmann method. Several benchmarks wereconducted to validate the code, including the recovery of Laplace pressure, the layered flow of two immiscible liquids, and the implementation of wetting boundary conditions on a curved surface. Gravity-driven motion of a drop through the pore space was qualitatively compared to the available experimental results. Quantitative assessment of the pressure field across the interface of the moving and deforming drop was performed. Our results show that high Weber number due to low surface tension and low Reynolds number due to low velocity of the continuous liquid promote drop breakage. More viscous drops break easier than less viscous drops. We present the phase charts (Weber vs capillary number) and the critical conditions (Weber as a function of Reynolds number) of drop breakage.",

keywords = "Pore space, Liquid-liquid dispersion, Drop breakup, Phase-field method",

author = "Fenglei Huang and Zhe Chen and Zhipeng Li and Zhengming Gao and Derksen, {J. J.} and Alexandra Komrakova",

note = "Acknowledgements The authors appreciatively acknowledge the financial support from the National Key Research and Development Program of China (No.2016YFB0302801) and the China Scholarship Council. This research has been enabled by the use of computing resources provided by Compute Canada.",

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doi = "10.1016/j.ces.2020.116351",

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AU - Huang, Fenglei

AU - Chen, Zhe

AU - Li, Zhipeng

AU - Gao, Zhengming

AU - Derksen, J. J.

AU - Komrakova, Alexandra

N1 - Acknowledgements The authors appreciatively acknowledge the financial support from the National Key Research and Development Program of China (No.2016YFB0302801) and the China Scholarship Council. This research has been enabled by the use of computing resources provided by Compute Canada.

PY - 2021/4/6

Y1 - 2021/4/6

N2 - Deformation and breakup of a liquid drop immersed in another immiscible liquid and flowing through a single pore has been studied numerically using a conservative phase-field lattice Boltzmann method. Several benchmarks wereconducted to validate the code, including the recovery of Laplace pressure, the layered flow of two immiscible liquids, and the implementation of wetting boundary conditions on a curved surface. Gravity-driven motion of a drop through the pore space was qualitatively compared to the available experimental results. Quantitative assessment of the pressure field across the interface of the moving and deforming drop was performed. Our results show that high Weber number due to low surface tension and low Reynolds number due to low velocity of the continuous liquid promote drop breakage. More viscous drops break easier than less viscous drops. We present the phase charts (Weber vs capillary number) and the critical conditions (Weber as a function of Reynolds number) of drop breakage.

AB - Deformation and breakup of a liquid drop immersed in another immiscible liquid and flowing through a single pore has been studied numerically using a conservative phase-field lattice Boltzmann method. Several benchmarks wereconducted to validate the code, including the recovery of Laplace pressure, the layered flow of two immiscible liquids, and the implementation of wetting boundary conditions on a curved surface. Gravity-driven motion of a drop through the pore space was qualitatively compared to the available experimental results. Quantitative assessment of the pressure field across the interface of the moving and deforming drop was performed. Our results show that high Weber number due to low surface tension and low Reynolds number due to low velocity of the continuous liquid promote drop breakage. More viscous drops break easier than less viscous drops. We present the phase charts (Weber vs capillary number) and the critical conditions (Weber as a function of Reynolds number) of drop breakage.

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JF - Chemical Engineering Science

M1 - 116351

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Numerical study of drop behavior in a pore space

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Keywords

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