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对称Y型微通道中铁磁流体液滴的磁场诱导破裂分析

Analysis of magnetic field-induced breakup of ferrofluid droplets in a symmetric Y-junction microchannel.

作者信息

Naseri Parviz, Seyyedi Seyyed Masoud, Hashemi-Tilehnoee Mehdi, Naeimi Azadeh Sadat

机构信息

Department of Mechanical Engineering, Aliabad Katoul branch, Islamic Azad University, Aliabad Katoul, Iran.

Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510, Vitoria-Gasteiz, Spain.

出版信息

Sci Rep. 2024 Oct 10;14(1):23763. doi: 10.1038/s41598-024-74805-7.

DOI:10.1038/s41598-024-74805-7
PMID:39390127
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11467301/
Abstract

This research focuses on the analysis of the breakup of ferrofluid droplets in a symmetric microchannel with a Y-junction microchannel, utilizing computational methods. The study proposes an innovative strategy to enhance the breakup phenomenon by introducing a magnetic field within the branches of the Y-junction microchannel. To verify the obtained results, a comprehensive comparison is conducted, incorporating previous numerical and experimental investigations available in the literature. The outcomes of this comparison demonstrate a significant concurrence between the current findings and the prior studies. The results unequivocally elucidate that the presence of a magnetic field accelerates the fragmentation of the parent droplet in comparison to scenarios without a magnetic field. Furthermore, it is established that the duration required for droplet breakup decreases as the magnetic Bond number increases. Achieved results indicates [Formula: see text] decreases about 3% and 1.5% for L*=3 and L*=4, respectively. It is worth highlighting that this trend is particularly accentuated in the case of smaller non-dimensional lengths, specifically L=3.0.

摘要

本研究利用计算方法，聚焦于对具有Y型微通道的对称微通道中铁磁流体液滴破裂的分析。该研究提出了一种创新策略，通过在Y型微通道的分支内引入磁场来增强破裂现象。为了验证所得结果，进行了全面比较，纳入了文献中先前的数值和实验研究。该比较结果表明当前研究结果与先前研究之间存在显著一致性。结果明确表明，与无磁场的情况相比，磁场的存在加速了母液滴的破碎。此外，还确定了液滴破裂所需的持续时间随着磁邦德数的增加而减少。所得结果表明，对于L* = 3和L* = 4，[公式：见原文]分别下降约3%和1.5%。值得强调的是，这种趋势在较小的无量纲长度情况下，特别是L = 3.0时尤为明显。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e32/11467301/2798971a35a8/41598_2024_74805_Fig11_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e32/11467301/2798971a35a8/41598_2024_74805_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e32/11467301/4e6bd2ffeea6/41598_2024_74805_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e32/11467301/2ba73e7b0275/41598_2024_74805_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e32/11467301/79035ae7fb56/41598_2024_74805_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e32/11467301/bb56c29838a3/41598_2024_74805_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e32/11467301/7d0746998815/41598_2024_74805_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e32/11467301/1ea6bb9859f3/41598_2024_74805_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e32/11467301/65bcb43e5d86/41598_2024_74805_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e32/11467301/9b8aade56355/41598_2024_74805_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e32/11467301/5c2d140045d3/41598_2024_74805_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e32/11467301/7eeb96f4c762/41598_2024_74805_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e32/11467301/2798971a35a8/41598_2024_74805_Fig11_HTML.jpg

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