Numerical study of vapor condensation and droplet migration on the asymmetrical micropillar arrays
文献类型：期刊论文
| 作者 | Wang, Xin1; Guo, Shuai1; Tang, Zhiwen1; Xu, Bo1; Zhu ZQ(朱志强)4 ; Chen, Zhenqian1,2,3
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| 刊名 | INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
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| 出版日期 | 2024-03-01 |
| 卷号 | 152页码:12 |
| ISSN号 | 0735-1933 |
| 关键词 | Condensation Droplet migration Heat transfer Asymmetrical structures Lattice Boltzmann method |
| DOI | 10.1016/j.icheatmasstransfer.2024.107295 |
| 通讯作者 | Zhu, Zhiqiang(zhuzhiqiang@imech.ac.cn) ; Chen, Zhenqian(zqchen@seu.edu.cn) |
| 英文摘要 | In this work, the pseudopotential lattice Boltzmann method is used to simulate the vapor condensation on the asymmetric micropillar-arrayed surface. The impact of surface wettability, structural height and spacing on the dynamic characteristics of droplets and condensation performance are analyzed. Finally, the heat flux and migration velocity of condensate on the micropillar-arrayed substrates with various structures for the same roughness are compared. The results demonstrate that the weaker wettability accelerates the droplet migration and thus enhances the heat transfer performance. By properly designing the spacing and height of the trapezoidal microstructures, both the migration velocity of droplets and heat flux can be enhanced. There exists an optimal microstructure to maximize the migration velocity and heat flux. Compared with the asymmetric trapezoidal structures, the migration velocity of droplets is smaller and the heat transfer efficiency is lower on the asymmetric triangular structures. This work illustrates the mechanism of directional migration of droplets and vapor condensation on the asymmetric micropillared arrays in detail. |
| 分类号 | 一类 |
| WOS关键词 | LATTICE BOLTZMANN SIMULATION ; DROPWISE CONDENSATION ; HEAT-TRANSFER ; PHASE-TRANSITIONS ; SURFACES ; GROWTH ; MODEL |
| 资助项目 | National Natural Science Foundation of China[52306075] ; National Natural Science Foundation of Jiangsu Province[BK20230849] ; Low carbon Aerospace Power Engineering Research Center of Ministry of Education , China[CEPE2020022] ; ESA-CMSA International Cooperation of Space Experiment Project (Study on Condensation and Enhancement Methods under Microgravity) |
| WOS研究方向 | Thermodynamics ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001188062100001 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of Jiangsu Province ; Low carbon Aerospace Power Engineering Research Center of Ministry of Education , China ; ESA-CMSA International Cooperation of Space Experiment Project (Study on Condensation and Enhancement Methods under Microgravity) |
| 其他责任者 | Zhu, Zhiqiang ; Chen, Zhenqian |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/94652]  |
| 专题 | 力学研究所_国家微重力实验室 |
| 作者单位 | 1.Southeast Univ, Sch Energy & Environm, Nanjing, Peoples R China; 2.Southeast Univ, Sch Energy & Environm, Key Lab Energy Thermal Convers & Control, Minist Educ, Nanjing, Peoples R China; 3.Southeast Univ, Sch Energy & Environm, Jiangsu Prov Key Lab Solar Energy Sci & Technol, Nanjing, Peoples R China; 4.Chinese Acad Sci, Key Lab Micrograv, Natl Micrograv Lab, Inst Mech, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xin,Guo, Shuai,Tang, Zhiwen,et al. Numerical study of vapor condensation and droplet migration on the asymmetrical micropillar arrays[J]. INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER,2024,152:12. |
| APA | Wang, Xin,Guo, Shuai,Tang, Zhiwen,Xu, Bo,朱志强,&Chen, Zhenqian.(2024).Numerical study of vapor condensation and droplet migration on the asymmetrical micropillar arrays.INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER,152,12. |
| MLA | Wang, Xin,et al."Numerical study of vapor condensation and droplet migration on the asymmetrical micropillar arrays".INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER 152(2024):12. |
入库方式： OAI收割
来源：力学研究所
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