Two- and Three-Dimensional Modelling of Heating and Evaporation Under Steady Conditions

In Chap. 10 we have seen that when an evaporating drop has the shape of a sphere, a spheroid or an ellipsoid, and the boundary conditions are uniform over the drop surface, the whole problem simplifies when proper coordinate systems are used and one-dimensional solutions of the conservation equations can be found. When the drop assumes different shapes, or the boundary conditions are not uniform, two- or three-dimensional solutions appear, even using proper coordinate systems. In this chapter we will explore some cases of practical interest when 2-D or even 3-D solutions can be found analytically.