To further study the rupture of droplet after its impacting and the influence of different parameters on the droplet evaporation and heat transfer

three dimensional numerical simulation is performed by using CLSVOF method and phase transformation model. The effect of wall temperature

contact angle and impact velocity on the evaporation and heat transfer of droplet are considered in the simulation and the results show that the rupture position is related to the impact velocity of the droplet. When the impact velocity is small

the rupture occurs at the center of the droplet. When the impact velocity is large

the rupture position deviates from the center of the droplet. It is also found that vapor vortexes are generated near the three-phase contact line and the rupture

which strengthen the heat transfer between the droplet and the wall

and increase the heat flux density of droplet side as well. In a short time

the wall temperature has little effect on droplet evaporation

but the impact velocity and contact angle have great effect on droplet evaporation. The smaller the contact angle and the greater the impact velocity

the greater the average heat flux density and the greater the droplet evaporation

which is beneficial to heat transfer between the droplet and the wall.