A lattice Boltzmann method for simulation of condensation on liquid-impregnated surfaces. (April 2019)

• Record Type: Journal Article
• Authors: Haghani-Hassan-Abadi, Reza; Rahimian, Mohammad Hassan
• Is Part Of: International communications in heat and mass transfer. Volume 103(2019:Apr.)
• Page Start: 7
• Page End: 16
• Publication Date: 2019-04
• Subjects: Phase change -- Lattice Boltzmann method -- Ternary fluids -- Liquid-impregnated pillar array surface; Heat -- Transmission -- Periodicals; Mass transfer -- Periodicals; Chaleur -- Transmission -- Périodiques; Transfert de masse -- Périodiques; Heat -- Transmission; Mass transfer; Periodicals; 621.4022
• DOI: 10.1016/j.icheatmasstransfer.2019.02.005
• Languages: English
• ISSNs: 0735-1933

Abstract

Abstract: We investigate the condensation mechanism due to phase change on a pillar arrays of a liquid-impregnated surface using a phase-field lattice Boltzmann method. In addition to the solid substrate, the system consists of three immiscible fluids, two of which undergo phase change. The contact line motion over the rough structures shows a three-stage behavior: sticking to the top-corner of a post, jumping from one post to another, and slipping over the top of a post. As the volume of the condensed droplet increases, this periodic behavior, i.e., stick-jump-slip, happens faster. This work provides a better understanding of the flow dynamics on liquid-impregnated surfaces.