ABSTRACT
Wicking and evaporation occur simultaneously in a variety of situations. In this chapter, we present and study several aspects of wicking/evaporation when evaporation is external mass transfer driven and uncon ned or weakly con ned. These include the inˆuence of evaporation on the nal impregnation height and the impregnation dynamics, the structure and the inˆuence of the evaporation ˆux distribution along the wick surface, and the transport of a dissolved species. Other effects, still poorly studied, such as the inˆuence of liquid lms or the shape of the internal evaporation front in the wick are also addressed. Despite the practical importance of wicking/evaporation situations, this chapter also shows that further work is needed to increase our understanding of the combined action of wicking and evaporation and our prediction capabilities.
