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hydraulic head

hydraulic head In general, the elevation of a water body above a particular datum level. Specifically, the energy possessed by a unit weight of water at any particular point, and measured by the level of water in a manometer at the laboratory scale, or by water level in a well, borehole, or piezometer in the field. The hydraulic head consists of three parts: the elevation head (see ELEVATION POTENTIAL ENERGY), defined with reference to a standard level or datum; the pressure head, defined with reference to atmospheric pressure; and the velocity head. Water invariably flows from points of larger hydraulic head to points of lower head, down the hydraulic gradient.

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"hydraulic head." A Dictionary of Earth Sciences. . Encyclopedia.com. 15 Dec. 2017 <http://www.encyclopedia.com>.

"hydraulic head." A Dictionary of Earth Sciences. . Encyclopedia.com. (December 15, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/hydraulic-head

"hydraulic head." A Dictionary of Earth Sciences. . Retrieved December 15, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/hydraulic-head

hydraulic head

hydraulic head In general, the elevation of a water body above a particular datum level. Specifically, the energy possessed by a unit weight of water at any particular point, and measured by the level of water in a manometer at the laboratory scale, or by water level in a well, borehole, or piezometer in the field. The hydraulic head consists of three parts: the elevation head (see elevation potential energy), defined with reference to a standard level or datum; the pressure head, defined with reference to atmospheric pressure; and the velocity head. Water invariably flows from points of larger hydraulic head to points of lower head down the hydraulic gradient.

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"hydraulic head." A Dictionary of Ecology. . Encyclopedia.com. 15 Dec. 2017 <http://www.encyclopedia.com>.

"hydraulic head." A Dictionary of Ecology. . Encyclopedia.com. (December 15, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/hydraulic-head-0

"hydraulic head." A Dictionary of Ecology. . Retrieved December 15, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/hydraulic-head-0