Ring droplet formation during evaporation of a sessile water droplet on a biphilic surface

Hui Chung Cheng, Cheng Han Li, Tien Li Chang, Ping Hei Chen*

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

摘要

Numerous studies have investigated droplet evaporation on surfaces with different roughness and wettability values. However, most studies have focused on droplet evaporation from homogeneous surfaces at low surface temperatures (below 100 °C). In this study, we conducted droplet evaporation experiments on biphilic surfaces with different ring pattern sizes fabricated by a hybrid method consisting of the sol-gel approach and a picosecond laser system. This study investigated the droplet evaporation boiling phenomenon on these biphilic surfaces under superheated conditions. Changes in droplet geometry and inner bubble dynamics during evaporation were analyzed using a high-speed camera. A ring-shaped droplet formed during the final evaporation period. The formation of the ring enhanced the droplet evaporation efficiency. Furthermore, the experimental results from this study work were compared with the theoretical model proposed in the literature.

原文英語
文章編號121956
期刊International Journal of Heat and Mass Transfer
182
DOIs
出版狀態已發佈 - 2022 一月

ASJC Scopus subject areas

  • 凝聚態物理學
  • 機械工業
  • 流體流動和轉移過程

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