Hydraulic Head in Groundwater
The distribution of hydraulic head through an aquifer determines where groundwater will flow. In a hydrostatic example (first figure), where the hydraulic head is constant, there is no flow. However, if there is a difference in hydraulic head from the top to bottom due to draining from the bottom (second figure), the water will flow downward, due to the difference in head, also called the hydraulic gradient.
Read more about this topic: Hydraulic Head
Famous quotes containing the word head:
“Gentlemen, no one objects to the husband being the head of the wife as Christ was the head of the church—to crucify himself; what we object to is his crucifying his wife.”
—Susan B. Anthony (1820–1906)