This present book is concerned with analytical approaches to statement and solution of problems
of non-equilibrium evaporation and condensation. From analytical solutions one is capable to
understand and represent in a transparent form the principal laws especially in the study of a
new phenomenon or a process. This is why analytical methods are always employed on the first
stage of mathematical modeling. Analytical solutions are also used as test models for
validation of results numerical solutions. Non-equilibrium evaporation and condensation
processes play an important role in a number of fundamental and applied problems: laser methods
for processing of materials depressurization of the protection cover of nuclear propulsion
units solar radiation on a comet surface explosive boiling of superheated liquid
thermodynamic principles of superfluid helium. Analytical relations provide an adequate
description of the essence of a physical phenomenon.
