合成双射流抑制超疏水表面水滴撞击结冰
Suppression of droplet impact freezing on superhydrophobic surfaces using dual synthetic jets
摘要
Abstract
Superhydrophobic surfaces,which can promote the rebound of impacting water droplets,have become a research hotspot in the field of anti-/de-freezing.However,under practical freezing conditions,the performance of su-perhydrophobic surfaces may deteriorate during droplet impact,leading to anti-freezing failure.We employ an active control technology using dual synthetic jets to suppress freezing.A low-temperature experimental system was built,and high-speed photography along with numerical simulations were used to analyze the freezing characteristics of wa-ter droplets impacting superhydrophobic surfaces at-30℃and the control effect of dual synthetic jets.The results show that,without using dual synthetic jets,droplets ultimately adhere to the surface and freeze;with the application of dual synthetic jets,droplet separation from the ice layer is effectively promoted,significantly reducing residual ice on the surface.Numerical simulations further reveal that dual synthetic jets inhibit ice formation by enhancing droplet mo-tion,altering local heat transfer,and modifying the flow field structure,providing a valuable reference for the develop-ment of novel low-energy consumption anti-/de-freezing technologies.关键词
合成双射流/水滴撞击/超疏水表面/结冰/高速摄影Key words
dual synthetic jets/droplet impact/superhydrophobic surface/freezing/high-speed photography分类
航空航天引用本文复制引用
高天翔,罗振兵,景向嵘,冯文杰,周岩,程盼..合成双射流抑制超疏水表面水滴撞击结冰[J].航空学报,2025,46(18):64-80,17.基金项目
国家自然科学基金(92271110,12202488,111872374,1972369,52075538) （92271110,12202488,111872374,1972369,52075538）
国家科技重大专项(J2019-Ⅲ-0010-0054,J2019-Ⅱ-0016-0037) （J2019-Ⅲ-0010-0054,J2019-Ⅱ-0016-0037）
湖南省自然科学基金(2023JJ30622) （2023JJ30622）
中国空气动力研究与发展中心结冰与防除冰重点实验室基金(IADL20220410) （IADL20220410）
沈阳市飞机结冰与防除冰重点实验室基金(YL2022XFX03) National Natural Science Foundation of China(92271110,12202488,111872374,1972369,52075538) （YL2022XFX03）
National Science and Technology Major Project(J2019-Ⅲ-0010-0054,J2019-Ⅱ-0016-0037) （J2019-Ⅲ-0010-0054,J2019-Ⅱ-0016-0037）
Natural Science Foundation of Hunan Province(2023JJ30622) （2023JJ30622）
Foundation of Key Laboratory of Icing and Anti/De-freezing,China Aerodynamics Research and Development Center(IADL20220410) （IADL20220410）
Shenyang Key Laboratory of Aircraft Icing and Ice Protection Foundation(YL2022XFX03) （YL2022XFX03）
