  The impact of liquid drops on a heated solid surface is of great importance
in many engineering applications. This paper describes the simulation of the
drop-wall interaction using the smoothed particle hydrodynamics (SPH) method.
The SPH method is a Lagrangian mesh-free method that can be used to solve the
fluid equations. A vaporization model based on the SPH formulation was also
developed and implemented. A parametric study was conducted to characterize the
effects of impact velocity and wall temperature on the impact outcome. The
present numerical method was able to predict different outcomes, such as
deposition, splash, breakup, and rebound (i.e., Leidenfrost phenomenon). The
present numerical method was used to construct a regime diagram for describing
the impact of an iso-octane drop on a heated surface at various Weber numbers
and wall temperatures.
