Discuss the below:
Darcy's law permeability equation exists and is as follows:
k = (volume of liquid x length of specimen)/(time of flow x cross-sectional area of specimen x deltaP)
In this equation, there are 2 parameters that I do not understand
Q) When the equation refers to the "time of flow" (t) what is meant by that? Is that something like the amount of time it might rain on a piece of wood? Or, the amount of time water might be in contact with the wood?