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Hydraulic redistribution is a passive mechanism where water is transported from moist to dry soils via subterranean networks. [1] It occurs in vascular plants that commonly have roots in both wet and dry soils, especially plants with both taproots that grow vertically down to the water table, and lateral roots that sit close to the surface.
Hydraulic signaling is fast and effective because of the cohesion and tension properties of water. [1] Hydraulic signals can be propagated downward or upward, relaying water potential gradients throughout the entire plant. Hydraulic signals can be sensed in a few ways all relating to how an increase in water potential affects the plants.
Artificial lift is the use of artificial means to increase the flow of liquids, such as crude oil or water, from a production well. Generally this is achieved by the use of a mechanical device inside the well (known as pump or velocity string) or by decreasing the weight of the hydrostatic column by injecting gas into the liquid some distance down the well.
Hydraulic lift may refer to: A type of hydraulic machinery. Hydraulic elevator; A form of hydraulic redistribution, a plant phenomenon
Different types of pumps are suitable for different applications, for example: a pump's maximum lift height also determines the applications it can be used for. Low-lift pumps are only suitable for the pumping of surface water (e.g., irrigation, drainage of lands, ...), while high-lift pumps allow deep water pumping (e.g., potable water pumping ...
While the tympanum had a large discharge capacity, it could lift the water only to less than the height of its own radius and required a large torque for rotating. [23] These constructional deficiencies were overcome by the wheel with a compartmented rim which was a less heavy design with a higher lift. [24]
A wheel power divided by the initial jet power, is the turbine efficiency, η = 4u(V i − u)/V i 2. It is zero for u = 0 and for u = V i. As the equations indicate, when a real Pelton wheel is working close to maximum efficiency, the fluid flows off the wheel with very little residual velocity. [11]
A hydraulic pump is a mechanical source of power that converts mechanical power into hydraulic energy (hydrostatic energy i.e. flow, pressure). Hydraulic pumps are used in hydraulic drive systems and can be hydrostatic or hydrodynamic. They generate flow with enough power to overcome pressure induced by a load at the pump outlet.
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