Laminar film condensation on a finite-size horizontal wavy disk

Abstract

A theoretical analysis of steady, two-dimensional, laminar film condensation on a finite-size horizontal wavy disk is studied for the case in which a cold plate faces upward. The present study considers that the wavy characteristic length amplitude, and the depth of the boundary layer at the disk edge is equal to a minimum depth. The dimensionless heat transfer coefficient and the film thickness along the surface are found to be functions of parameters Pr, Ja, Ra, and the dimensionless wave length and amplitude.