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hydraulic gradient

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  • hydraulic gradient — noun or hydraulic grade line : a line joining the points of highest elevation of water in a series of vertical open pipes rising from a pipeline in which water flows under pressure * * * hydraulic gradient, the rate of fall of pressure head along …   Useful english dictionary

  • hydraulic gradient —    1. The change in static head per unit of distance in a given direction. If not specified, the direction generally is understood to be that of the maximum rate of decrease in head [22].    2. Slope of the water table or potentiometric surface… …   Lexicon of Cave and Karst Terminology

  • Hydraulic head — is a specific measurement of water pressure or total energy per unit weight above a geodetic datum. It is usually measured as a water surface elevation, expressed in units of length, but represents the energy at the entrance (or bottom) of a… …   Wikipedia

  • Hydraulic conductivity — Hydraulic conductivity, symbolically represented as K, is a property of vascular plants, soil or rock, that describes the ease with which water can move through pore spaces or fractures. It depends on the intrinsic permeability of the material… …   Wikipedia

  • hydraulic conductivity —    1. A proportionality constant relating hydraulic gradient to specific discharge which for an isotropic medium and homogeneous fluid, equals the volume of water at the existing kinematic viscosity that will move in unit time under a unit… …   Lexicon of Cave and Karst Terminology

  • hydraulic grade line — noun see hydraulic gradient …   Useful english dictionary

  • Hydraulic fracturing — is a method used to create fractures that extend from a borehole into rock formations, which are typically maintained by a proppant. The method is informally called fracing or hydrofrac. The technique is used to increase or restore the rate which …   Wikipedia

  • gradient —    The change in hydraulic head over some given distance (dh/dL) with ground water flow usually occurring in the direction of decreasing hydraulic head which requires by convention, the attaching of a minus sign to any equation utilizing a… …   Lexicon of Cave and Karst Terminology

  • Soil mechanics — is a discipline that applies principles of engineering mechanics, e.g. kinematics, dynamics, fluid mechanics, and mechanics of material, to predict the mechanical behavior of soils. Together with Rock mechanics, it is the basis for solving many… …   Wikipedia

  • Fox-Wisconsin Waterway — The Fox Wisconsin Waterway is a waterway formed by the Fox and Wisconsin Rivers. First used by European settlers in 1673 during the expedition of Marquette Joliet, it was one of the principal routes used by travelers between the Great Lakes and… …   Wikipedia

  • Dallas Water Utilities — (DWU) is the water and wastewater service operated by the City of Dallas, Texas, in the United States. DWU is a non profit City of Dallas department that provides services to the city and 31 nearby communities, employs approximately 1450 people,… …   Wikipedia

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