Free-energy lattice Boltzmann simulations of slicing of rising droplets

被引：0

作者：

Cao, Jiawei ^{[1
]}

Liu, Fengjiao ^{[1
]}

Wang, Shipeng ^{[1
]}

Li, Xiang ^{[1
]}

Zhang, Lijuan ^{[1
]}

Lu, Jie ^{[1
]}

Derksen, Jos J. ^{[2
]}

机构：

[1] Shanghai Univ Engn Sci, Sch Chem & Chem Engn, Shanghai, Peoples R China

[2] Univ Aberdeen, Sch Engn, Aberdeen, Scotland

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 2024年 / 102卷 / 02期

基金：

中国国家自然科学基金;

关键词：

contact angle; droplet slicing; free energy model; lattice Boltzmann; rising droplet; NONUNIFORM SYSTEM; IMPACT; IMPINGEMENT; SURFACES; MODELS;

D O I：

10.1002/cjce.25066

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

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 Eotvos number of 3.96 and a Morton number of 1.24 x 10(-4). 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 degrees to 135 degrees. Slicing time as well as fine droplet fragments staying behind on the knife depend on the knife's wettability.

引用

页码：925 / 940

页数：16

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