LAUSR

Abstract Experimental investigation on the interaction between molten tin droplets with water was conducted employing high-speed photography. The diameter of tin droplets was around 4.0 mm to 6.3 mm. Five tin droplet temperatures (300 °C, 350 °C, 400 °C, 450 °C, 500 °C) and six falling heights (15 cm, 30 cm, 45 cm, 60 cm, 75 cm, 90 cm) were taken into account. The results show that four typical phenomena can be observed: non-fragmentation, sheet expansion, sheet fragmentation and granular fragmentation. Even for the same conditions, more than one phenomenon occurs. The tin droplet temperature and speed have a significant influence on the interaction. The increase of temperature promotes the droplet to break into granular solid tin by thermodynamic mechanism, while the increase of speed facilitates the droplet to break into small sheets of tin by a hydrodynamic mechanism. The correlation between the tin speed and the falling height was derived, and some parametric analyses were also performed.