Towards efficient and sustaining condensation via hierarchical meshed surfaces: A 3D LBM study

doi:10.1016/j.icheatmasstransfer.2022.105919

	Towards efficient and sustaining condensation via hierarchical meshed surfaces: A 3D LBM study
	Cai, Junjie 1,2; Chen, Jingtan 2; Deng, Wei 2; Xia, Fan 2,3,4; Zhao, Jiyun 2
刊名	INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
	2022-03-01
卷号	132
关键词	Dropwise condensation Hierarchical structures Superhydrophobic surface Droplet dynamic behavior Lattice Boltzmann method
ISSN号	0735-1933
DOI	10.1016/j.icheatmasstransfer.2022.105919
通讯作者	Zhao, Jiyun(jiyuzhao@cityu.edu.hk)
英文摘要	Condensation is of fundamental importance for a wide range of energy, environmental, and engineering appli-cations. Extensive efforts have been made to boost droplet growth and condensation efficiency via delicately designing micro/nanostructured surfaces. However, simultaneously achieving rapid droplet growth and removal is still challenging. This study investigates the condensation on hierarchical mesh-covered surfaces employing the mesoscopic kinetic-based lattice Boltzmann method (LBM). The mechanism of dynamic growth and transport of droplets inside and outside the micro-pores is unraveled by resolving the heat transfer process and tracking the solid-liquid-vapor interactions. The proposed meshed surface realizes a robust self-refresh capability to clear the pinned droplets timely. The deterioration of hydrophobicity is avoided, contributing to a sustaining and pro-longed dropwise condensation. The optimal case cuts down the droplet residence time and departure radius of 18% and 17% through rational design of mesh structures, respectively. Besides, the number of large droplets throughout the condensation process can also be reduced to different levels. The results can provide viable references to design various desirable meshed surfaces, facilitating efficient condensation in diverse engineering scenarios and applications.
WOS关键词	LATTICE BOLTZMANN SIMULATION ; ENHANCED CONDENSATION ; DROPWISE CONDENSATION ; FILMWISE CONDENSATION ; DROPLET CONDENSATION ; FLOWS ; MODEL ; VAPOR ; TRANSITION ; DYNAMICS
WOS研究方向	Thermodynamics ; Mechanics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000788146300002
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131424]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhao, Jiyun
作者单位	1.Midea Grp, Thermal Technol Res Inst, Corp Res Ctr, Foshan 528311, Peoples R China 2.City Univ Hong Kong, Dept Mech Engn, Hong Kong, Peoples R China 3.Chinese Acad Sci, Inst Nucl Energy Safety Technol, Hefei Inst Phys Sci, Key Lab Neutron & Radiat Safety, Hefei 230031, Peoples R China 4.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Cai, Junjie,Chen, Jingtan,Deng, Wei,et al. Towards efficient and sustaining condensation via hierarchical meshed surfaces: A 3D LBM study[J]. INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER,2022,132.
APA	Cai, Junjie,Chen, Jingtan,Deng, Wei,Xia, Fan,&Zhao, Jiyun.(2022).Towards efficient and sustaining condensation via hierarchical meshed surfaces: A 3D LBM study.INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER,132.
MLA	Cai, Junjie,et al."Towards efficient and sustaining condensation via hierarchical meshed surfaces: A 3D LBM study".INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER 132(2022).