南京工业大学学报（自然科学版）2016，Vol.38Issue(6)：116-123,8.DOI:10.3969/j.issn.1671-7627.2016.06.020
超疏水冷表面上液滴冻结的可视化观测
Visual observation of water droplet freezing on superhydrophobic cold surface
摘要
Abstract
A comparative experimental study on water droplet freezing on superhydrophobic and ordinary surface has been conducted and a comparative analysis was carried out concerning the initial droplet freezing time and freezing duration time. In addition, a theoretical analysis was made about the mechanism of delaying water droplet freezing on superhydrophobic surface. The experimental results indicated that compared with that of ordinary surface, the initial droplet freezing time and freezing duration time on superhydrophobic surface could be remarkablely delayed and under different cold plate temperature conditions, all the droplets freezing process could be effectively delayed on superhydrophobic surface. Besides, the combination of surface contact angle and roughness could significantly increase the Gibbs free energy difference for phase change and reduce the heat transfer area between droplets and cold surface, which was the primary cause for delaying the initial droplet freezing time and freezing duration time on superhydrophobic surface.关键词
超疏水/液滴冻结/可视化/初始冻结时间/冻结持续时间Key words
superhydrophobic/droplets freezing/visualization/initial freezing time/freezing duration time分类
能源科技引用本文复制引用
李栋,张文娣,赵孝保,王鑫,钱晨露..超疏水冷表面上液滴冻结的可视化观测[J].南京工业大学学报（自然科学版）,2016,38(6):116-123,8.基金项目
江苏省自然科学基金青年基金（BK20150979）；江苏省高校自然科学基金面上项目 （）
