Hydraulic head definition

Hydraulic head means the flow of sewage is operating against resistance and the flow depth is above the crown of the sewer pipe.

Hydraulic head means the elevation to which water rises in a piezometer or a well.

Hydraulic head means the energy possessed by the water mass at a given point, related to the height above the datum plane that water resides in a well drilled to that point. In a groundwater system, the hydraulic head is composed of elevation head and pressure head.

Examples of Hydraulic head in a sentence

• Hydraulic head dh shall be based on published drain manufacturer’s design data or other approved data as a function of flow rate through the cumulative effect of secondary drains for an impounded roof area.

• Other head losses can be determined directly from figure Hydraulic head loss within apoint system can be estimated from figure As stated in above, flow into a well can be impeded by the lack of “wetted screen length,” in addition to hy- draulic head losses in the filter or through the screens chemical or mechanical clogging of the aquiferand filter.

• Hydraulic head is related to the pore pressure, P (Pa), byPwh = r g (4)where rw (kg m23) is the density of water and g¼( 9.81 m s22) is the acceleration due to gravity.¼ ¼The head at x 0 and flow at x Ls as functions of time were obtained by numerically inverting the Laplace transform solution given in Appendix 1.

• Several studies have also shown the importance of sea urchin pluteus larvae in the composition and biomass of zooplankton communities, playing a significant role in the pelagic foodweb (Luis et al.

• Douglas Shire Council Statement of Changes in Equity For the year ended 30 June 2020 Asset Retained Total revaluationSurplus surplus The above statement should be read in conjunction with the accompanying notes and the Significant Accounting Policies.

• Hydraulic Head • Hydraulic head is greater in the Boulder Zone than in the overlying monitoring zones(ca.

• Types of monitoring data collected at sites include: • Hydraulic head, within and outside the wall• Groundwater quality, within and outside the wall• Settlement of the top surface of the wall• Verticality of the wall At some cutoff walls installed at dam sites, geotechnical instruments, such as inclinometers, stress cells, electric piezometers, and survey markers, are installed to monitor the long-term behavior of the wall.

• Hydraulic head is lower in a discharging well than it would be if that well were shut in and allowed to recover to steady state.

• Hydraulic head lateral propagation is controlled by diffusivity D = K.esat / θ.

• Hydraulic head and temper- ature distribution along the upper boundary are a function of elevation, where the water table is assumed to be similar to the topography and temperature is approximated by the mean adiabatic lapse rate (MALR).X - 16 SAAR AND MANGA: DEPTH DEPENDENCE OF PERMEABILITY Hurwitz et al.

More Definitions of Hydraulic head

Hydraulic head means the pressure in a closed water or sewer pipe system where the pressure is over and above the atmospheric pressure.

Hydraulic head means a specific measurement of liquid pressure above a geodetic datum that is usually measured as a liquid surface elevation, expressed in units of length, at the entrance or bottom of a piezometer.

Hydraulic head means the energy contained at a point in the groundwater system. Hydraulic head is measured as the elevation to which water rises in a piezometer.

Hydraulic head means the height of water above any plane of reference; “hydraulic head” also means the energy, either kinetic or potential, possessed by each unit weight of a liquid, expressed as the vertical height through which a unit weight would have to fall to release the average energy possessed.