Free-energy lattice Boltzmann simulations of slicing of rising droplets

Jiawei Cao; Fengjiao Liu; Shipeng Wang; Xiang Li; Lijuan Zhang; Jie Lu; Jos J. Derksen

doi:10.1002/cjce.25066

Free-energy lattice Boltzmann simulations of slicing of rising droplets

Jiawei Cao, Fengjiao Liu^* (Corresponding Author), Shipeng Wang, Xiang Li, Lijuan Zhang, Jie Lu^* (Corresponding Author), Jos J. Derksen

^*Corresponding author for this work

Engineering

Shanghai University of Engineering Science

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

Abstract

We performed two-dimensional simulations of the slicing of a rising droplet by a vertical knife and by two knives. We used a free-energy lattice Boltzmann method. Most simulations are for an Eötvös number of 3.96 and a Morton number of 1.24 × (Formula presented.). We carefully probed effects of the spatial resolution on the rising speed and slicing process. The effect of wettability of the knife(s) was studied by varying the equilibrium contact angle of the drop on the knife in the range of 45° to 135°. Slicing time as well as fine droplet fragments staying behind on the knife depend on the knife's wettability.

Original language	English
Pages (from-to)	529-1016
Number of pages	16
Journal	Canadian journal of chemical engineering
Volume	102
Issue number	2
Early online date	21 Aug 2023
DOIs	https://doi.org/10.1002/cjce.25066
Publication status	Published - 1 Feb 2024

Bibliographical note

Funding Information:
This work was supported by the National Natural Science Foundation of China (Nos. 22078191, 21978165, and 92156020), Shanghai Sailing Program (No. 20YF1416000), and SUES High‐End Foreign Experts Recruitment Program.

Data Availability Statement

The peer review history for this article is available at https://www.webofscience.com/api/gateway/wos/peer-review/10.1002/cjce.25066.

DATA AVAILABILITY STATEMENT
The authors confirm that the data supporting the findings of this study are available within the article.

Keywords

contact angle
droplet slicing
free energy model
lattice Boltzmann
rising droplet

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Cite this

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title = "Free-energy lattice Boltzmann simulations of slicing of rising droplets",

abstract = "We performed two-dimensional simulations of the slicing of a rising droplet by a vertical knife and by two knives. We used a free-energy lattice Boltzmann method. Most simulations are for an E{\"o}tv{\"o}s number of 3.96 and a Morton number of 1.24 × (Formula presented.). We carefully probed effects of the spatial resolution on the rising speed and slicing process. The effect of wettability of the knife(s) was studied by varying the equilibrium contact angle of the drop on the knife in the range of 45° to 135°. Slicing time as well as fine droplet fragments staying behind on the knife depend on the knife's wettability.",

keywords = "contact angle, droplet slicing, free energy model, lattice Boltzmann, rising droplet",

author = "Jiawei Cao and Fengjiao Liu and Shipeng Wang and Xiang Li and Lijuan Zhang and Jie Lu and Derksen, {Jos J.}",

note = "Funding Information: This work was supported by the National Natural Science Foundation of China (Nos. 22078191, 21978165, and 92156020), Shanghai Sailing Program (No. 20YF1416000), and SUES High‐End Foreign Experts Recruitment Program. ",

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AU - Liu, Fengjiao

AU - Wang, Shipeng

AU - Li, Xiang

AU - Zhang, Lijuan

AU - Lu, Jie

AU - Derksen, Jos J.

N1 - Funding Information: This work was supported by the National Natural Science Foundation of China (Nos. 22078191, 21978165, and 92156020), Shanghai Sailing Program (No. 20YF1416000), and SUES High‐End Foreign Experts Recruitment Program.

PY - 2024/2/1

Y1 - 2024/2/1

N2 - We performed two-dimensional simulations of the slicing of a rising droplet by a vertical knife and by two knives. We used a free-energy lattice Boltzmann method. Most simulations are for an Eötvös number of 3.96 and a Morton number of 1.24 × (Formula presented.). We carefully probed effects of the spatial resolution on the rising speed and slicing process. The effect of wettability of the knife(s) was studied by varying the equilibrium contact angle of the drop on the knife in the range of 45° to 135°. Slicing time as well as fine droplet fragments staying behind on the knife depend on the knife's wettability.

AB - We performed two-dimensional simulations of the slicing of a rising droplet by a vertical knife and by two knives. We used a free-energy lattice Boltzmann method. Most simulations are for an Eötvös number of 3.96 and a Morton number of 1.24 × (Formula presented.). We carefully probed effects of the spatial resolution on the rising speed and slicing process. The effect of wettability of the knife(s) was studied by varying the equilibrium contact angle of the drop on the knife in the range of 45° to 135°. Slicing time as well as fine droplet fragments staying behind on the knife depend on the knife's wettability.

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KW - droplet slicing

KW - free energy model

KW - lattice Boltzmann

KW - rising droplet

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Free-energy lattice Boltzmann simulations of slicing of rising droplets

Abstract

Bibliographical note

Data Availability Statement

Keywords

Access to Document

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