Abstract
As is well known, wettability of solid surface and surface tension of liquid have an important role in the field of heat transfer with phase change. Those are remarkably related upon the behavior of liquid thin films that are dominant factor in the heat transfer phenomena. Several phenomena concerning thin liquid film, which is in contact with a heat transfer surface, are discussed. That is, the measurement of condensate thickness for water-ethanol solutal Maragoni dropwise condensation, the condensation of water vapor on outer surface of vertical thin tubes on which the surface tension instability occurs and the vaporization in micro-channel type high density vapor generator.
