Analysis of conduction-controlled rewetting of a hot surface by variational method

Abstract

A two region conduction-controlled rewetting model of hot surface with constant heat transfer coefficient in wet region and an adiabatic condition in the dry region is solved by the variational method. Three different models have been used for the analysis. A three parametric relation among various parameters, namely, non-dimensional dry wall temperature, Biot number and wet front velocity is obtained. Results of the present solutions are found to be in good agreement with other analytical solutions and published test data. © 2013 Springer-Verlag Berlin Heidelberg.