Computational and Experimental Study on Freezing Characteristics of Supercooled Water Droplet

Based on the Enthalpy-porosity model, an improved icing prediction model and numerical method are developed for the special freezing process of aircraft icing. The model and prediction method are validated by the related experiments. Compared with the traditional Enthalpy-porosity method, the results show that the new method can characterize the non-equilibrium freezing process of supercooled water droplet more effectively. Using the developed method, the influencing factors of the freezing characteristics of supercooled water droplet are analyzed, the temperature distribution and phase interface characteristics are obtained under different cooling conditions..The results can provide an important reference for the improvement of icing thermodynamic model and finer prediction of icing accretion.