Collision between an evaporating drop and a hot wall

The dynamic and thermal interaction between a hot surface and an impinging drop is analyzed in the quasi-stationary approximation neglecting the dissipation effects. The drop is modeled by a variable-radius disk under pressure. The phase paths of the system and the time-dependences of the system parameters are determined. Critical conditions corresponding to an elastic rebound of the drop from the surface are estimated, as are the collision time and the heat transferred from the wall to the drop. The assumptions made and the correspondence between theoretical results and experimental data are examined.