Evaporation in Porous Media with Small Evaporation Rate

Application ID: 21931

Evaporation in porous media is an important process in food and paper industry among others. Many physical effects must be considered: fluid flow, heat transfer in porous media and transport of moisture. This tutorial describes how dry air flowing through a humid porous medium can partially dry it. It is assumed that the initial amount of liquid water in the porous medium is large enough and that the evaporation rate is small so that the water is never fully evaporated. In addition, the evaporation rate is small enough to neglect property changes in the porous medium.

This model example illustrates applications of this type that would nominally be built using the following products:

Heat Transfer Module