航空科学技术2023，Vol.34Issue(12)：20-29,10.DOI:10.19452/j.issn1007-5453.2023.12.003
超疏水表面的过冷水滴捕获规律研究
Study of Supercooled Water Droplet Capture Patterns on Superhydrophobic Surfaces
摘要
Abstract
Aircraft often face the danger of icing during flight with urgent anti-icing needs,and energy-efficient superhydrophobic electro-thermal composite anti-icing skins have broad application prospects,but the superhydrophobic surface supercooled water droplet collection characteristics have not been considered in current design methods.In order to give full play to the role of superhydrophobic surfaces in aircraft anti-icing solutions,this paper firstly designs a spray device with accurate control of droplet diameter and flow rate,then determines a scheme for the experiments on the capture rate of supercooled water droplets,and finally explains the differences in surface capture rate under different experimental conditions and summarises the relevant laws by combining the theories related to heat transfer and surface properties.The results show that under the experimental conditions,the superhydrophobic surface supercooled water droplet capture rate is about 25%of that of the PI surface,which proves that the superhydrophobic surface reduces energy consumption due to the reduction of the total amount and duration of water droplets on the surface,and provides a basis for the accurate design of the minimum anti-icing power of the new generation superhydrophobic electro-thermal composite skin,which is of great significance for the normal operation of UAVs in harsh environments.关键词
超疏水表面/过冷水滴捕获率/飞机防冰/温度/倾斜角度/喷雾时间Key words
superhydrophobic surfaces/supercooled water droplet capture rate/aircraft anti-icing/temperature/tilt angle/spraying time分类
航空航天引用本文复制引用
王文帅,陈增贵,燕则翔,吕湘连,何洋..超疏水表面的过冷水滴捕获规律研究[J].航空科学技术,2023,34(12):20-29,10.基金项目
翼型叶栅空气动力学重点实验室稳定支持经费项目(61422010102,6142201200403) National Key Laboratory of Science and Technology on Aerodynamic Design and Research(61422010102,6142201200403) （61422010102,6142201200403）
