Journal of Shanghai Jiao Tong University ›› 2025, Vol. 59 ›› Issue (8): 1145-1155.doi: 10.16183/j.cnki.jsjtu.2023.569

• Mechanical Engineering • Previous Articles     Next Articles

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

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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