Falling-film rewetting of a hot vertical surface
Abstract
Particular attention was given to the effect of precursory cooling caused by the droplet-vapor mixture ahead of the wet front in this study. A two-dimensional physical model was proposed that consists of an infinitely extended vertical surface with the dry region ahead of the wet front characterized by an exponentially decaying heat flux and the wet region behind the moving film front associated with a constant heat transfer coefficient. Apart from the two dimensionless constants describing the extent of precursory cooling ahead of the front, the physical problem was characterized by three dimensionless groups; the Peclet number or the dimensionless wetting velocity, the Biot number and a dimensionless temperature.
- Publication:
-
Ph.D. Thesis
- Pub Date:
- 1977
- Bibcode:
- 1977PhDT........55D
- Keywords:
-
- Film Cooling;
- Hot Surfaces;
- Wetting;
- Biot Method;
- Dimensionless Numbers;
- Heat Transfer Coefficients;
- Liquid Nitrogen;
- Peclet Number;
- Two Dimensional Models;
- Fluid Mechanics and Heat Transfer