上海交通大学学报 ›› 2025, Vol. 59 ›› Issue (8): 1145-1155.doi: 10.16183/j.cnki.jsjtu.2023.569

• 机械与动力工程 • 上一篇    下一篇

过冷水-壁面接触面积对冰成核行为影响实验研究

陆晨律, 王利平, 孟航飞, 刘洪, 王福新()   

  1. 上海交通大学 航空航天学院, 上海 200240
  • 收稿日期:2023-11-10 修回日期:2023-12-26 接受日期:2023-12-29 出版日期:2025-08-28 发布日期:2025-08-26
  • 通讯作者: 王福新 E-mail:fuxinwang@sjtu.edu.cn
  • 作者简介:陆晨律(1999—),硕士生,从事飞机结冰研究.
  • 基金资助:
    国家自然科学基金(52202447);上海市青年科技英才扬帆计划(22YF1419000);中央高校基本科研业务费专项资金(23X010201110)

Ice Nucleation Behavior in Supercooled Water with Varying Wall Contact Area

LU Chenlü, WANG Liping, MENG Hangfei, LIU Hong, WANG Fuxin()   

  1. School of Aeronautics and Astronautics, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2023-11-10 Revised:2023-12-26 Accepted:2023-12-29 Online:2025-08-28 Published:2025-08-26
  • Contact: WANG Fuxin E-mail:fuxinwang@sjtu.edu.cn

摘要:

认知过冷水与固体表面接触对冰成核过程的影响对过冷物质储运以及防冰表面设计等工程应用非常关键,而接触面积变化对冰成核的影响尚不明确,尤其是当接触面积较大时.通过改变硅胶管和聚氯乙烯(PVC)纤维增强软管的长度改变过冷水与壁面接触面积的方式,研究了接触面积对结冰温度的影响.实验结果表明,接触面积变化将显著影响过冷水的结冰温度.根据所得变化规律建立了接触面积-过冷度预测模型,并利用实验结果对经典成核理论中的面积项进行了修正.修正后的成核率预测结果与实验中面积增长对成核的影响基本一致,且接触面积对成核率的影响并非目前认为的线性,而呈非线性.研究方法和所提出的模型为未来工程中过冷水的利用以及接触面积变化影响成核过程的进一步研究奠定了良好的基础.

关键词: 过冷水, 异质冰成核, 接触面积, 成核预测, 修正模型

Abstract:

Understanding the influence of the contact area between supercooled water and surface on the nucleation is critical for engineering applications such as anti-icing surface design and the supercooling preservation. However, the effect of contact area between supercooled water and surface on the nucleation still remains unclear, especially when the contact area is large. Therefore, the influence of the contact area on the freezing temperature of supercooled water inside the hose was experimentally studied by changing the length of silicone and polyvinyl chloride (PVC)-reinforced hoses. The results show that variations in contact area significantly affect the freezing temperature of supercooled water. Based on experimentally observed trends, a predictive model for contact area-supercooling relationship was developed. Furthermore, the area term in the classical nucleation theory (CNT) was modified using the experimental data. The modified nucleation rate predictions align well with the experimental findings regarding the influence of increasing contact area on nucleation. Notably, the effect of contact area on nucleation rate was found to be nonlinear, contrary to the commonly assumed linear relationship. The research methodology and the proposed model in this paper provide a solid foundation for future applications of supercooled water in engineering, as well as for further investigation into the role of contact area in nucleation phenomena.

Key words: supercooled water, heterogenous ice nucleation, contact area, prediction of nucleation, modified model

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