  A dryout point is recognized as the position where the phase transition from
liquid to vapor occurs. In the one-dimensional case, by solving the stationary
incompressible Navier-Stokes-Fourier equations with phase transition, we derive
a necessary and sufficient condition for a dryout point to exist when the
temperature at the liquid-vapor interface is given. In addition, we show by
considering thermodynamics that the temperature at the dryout point and the
density of the vapor phase can be determined by given density and sufficiently
small injected mass flux of the liquid phase.
