Wetted length (given liquid transport in porous media, sorptivity, porosity )
Formula
S
the sorptivity of the medium, with dimensions m*s-1/2
f
the porosity of the medium
Formula description
When a dry porous medium, such as a brick or a wick, is brought into contact with a liquid, it will start absorbing the liquid at a rate which decreases over time. This is a kind of capillary action.