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Ternary free-energy entropic lattice Boltzmann model with a high density ratio

Wöhrwag, M.; Semprebon, C.; Mazloomi Moqaddam, A.; Karlin, I.; Kusumaatmaja, H.

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Authors

M. Wöhrwag

C. Semprebon

A. Mazloomi Moqaddam

I. Karlin



Abstract

A thermodynamically consistent free energy model for fluid flows comprised of one gas and two liquid components is presented and implemented using the entropic lattice Boltzmann scheme. The model allows a high density ratio, up to the order of O ( 10 3 ) , between the liquid and gas phases, and a broad range of surface tension ratios, covering partial wetting states where Neumann triangles are formed, and full wetting states where complete encapsulation of one of the fluid components is observed. We further demonstrate that we can capture the bouncing, adhesive, and insertive regimes for the binary collisions between immiscible droplets suspended in air. Our approach opens up a vast range of multiphase flow applications involving one gas and several liquid components.

Citation

Wöhrwag, M., Semprebon, C., Mazloomi Moqaddam, A., Karlin, I., & Kusumaatmaja, H. (2018). Ternary free-energy entropic lattice Boltzmann model with a high density ratio. Physical Review Letters, 120(23), Article 234501. https://doi.org/10.1103/physrevlett.120.234501

Journal Article Type Article
Acceptance Date May 9, 2018
Online Publication Date Jun 8, 2018
Publication Date Jun 8, 2018
Deposit Date May 30, 2018
Publicly Available Date Mar 29, 2024
Journal Physical Review Letters
Print ISSN 0031-9007
Electronic ISSN 1079-7114
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 120
Issue 23
Article Number 234501
DOI https://doi.org/10.1103/physrevlett.120.234501
Related Public URLs https://arxiv.org/abs/1710.07486

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Copyright Statement
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.






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