Experimental investigation of an ice particle impinging on a hot surface

This work studied the impinging process of an ice particle on a hot surface. The influences of the impact velocity, the impact angle, and the target surface temperature were studied. The equivalent diameter of the fragments and the volume ratio of adhering fragments were analyzed. The results indicated that, the increase in impact velocity tended to reduce the sizes of the relatively large fragments but promote the generation of more fragments. The target surface temperature had a significant effect on the adhesion of fragments. In this study, the distribution of the dimensionless equivalent diameter of the fragments could be represented by the log-normal distribution. Besides, a new method was developed to extract the volume ratio of adhering fragments. With the increase of the impact velocity, the impact angle, and the target surface temperature, the volume ratio of adhering fragments also increased. Within the scope of the present study, the volume ratio generally ranged from 0.001 to 0.028. Moreover, at $\alpha$= 60.0°, $T_s$= 160.0 °C, and $v_0$= 58.0 m/s, the volume ratio reached its maximum value. Finally, a correlation for the volume ratio of adhering fragments was developed.