LAMINAR-FILM CONDENSATION ON A FINITE-SIZE HORIZONTAL WAVY PLATE

A theoretical analysis of two-dimensional, steady laminar film condens ation on a finite-size horizontal wavy plate is studied for the case i n which a cold plate faces upwards. The present study considers that t he wavy characteristic length,amplitude and the depth of boundary laye r at the plate edge is equal to a minimum depth. The dimensionless hea t transfer coefficients and the dimensionless film thickness along the surface are found to be functions of five parameters: dimensionless w ave length and amplitude, Pr, Ja and Ra. (C) 1997 Elsevier Science Ltd .