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...he [[Energy Policy and Conservation Act#Energy Conservation Program|Energy Conservation Program]].<ref name="stat authority">{{cite web|title=Statutory Authorities ...v/energysaver/estimating-costs-and-efficiency-storage-demand-and-heat-pump-water-heaters|website=Energy.gov|publisher=US Dept of Energy|accessdate=2 June 20 ...

[[File:Leonardo da Vinci - RCIN 912660, v, Studies of water c.1510-12.jpg|thumb|right|Studies of vortices in turbulent fluid motion by ...of the component of [[vorticity]] in the stretching direction—due to the [[conservation of angular momentum]].<ref>Tennekes & Lumley (1972) pp. 83–84.</ref> ...

...re, Euler presents his results for maximizing the outputs of windmills and water wheels, among other means of powering pumps. ...(More complete theory of machines that are set in motion by reaction with water), ''Mémoires de l'Académie Royale des Sciences et des Belles Lettres à Berl ...

...g to the [[United States Department of Agriculture]]'s [[National Resource Conservation Service]], in 2007 in the US, 99 million acres (28% of all cropland) were e ...2003|page=129|isbn=978-0130968074}}</ref> The value was adapted for use in conservation management beginning in the mid-1960s.<ref>{{cite book|author=R. Lal|title= ...

...arious academic fields, and has been successful explaining drug diffusion, water transport, and ice formation in tissues.<ref name="Biomed Experts">{{cite b ...pplying [[Fick's laws of diffusion]] and the [[Conservation of mass|law of conservation of mass]] over a radial [[Interval (mathematics)|interval]] <math>Rc \le r ...

...2015),<ref name="auto">Geng, X. and B. M.C. (2015). "Numerical modeling of water flow and salt transport in bare saline soil subjected to evaporation." Jour ...of source/sink terms, the equation for the conservation of the fluid mass (water + salt) is: ...

{{Short description|Effect by which surface waves entering shallower water change in wave height}} ...owever, the group velocity first increases by 20% with respect to its deep-water value (of ''c''_g&nbsp;=&nbsp;{{sfrac|1|2}}''c''₀&nbsp ...

{{Short description|Scale Analysis of Air and Water Interaction in Urban Drainage Systems}} = '''Scale Analysis of Air and Water Interaction in Urban Drainage Systems''' = ...

...analysis,<ref name=Closea1990>Closea ME & Davies‐Colley RJ (1990) Baseflow water chemistry in New Zealand rivers 2. Influence of environmental factors. NZ J ...

...ous medium]], for example sponge or wood, or when [[filtration|filtering]] water using sand or another porous material. As commonly observed, some fluid flo ...ural gas flow, elastic energy driven flow, oil-gas two-phase flow, and gas-water two-phase flow.<ref>{{Citation |title=Classical flow theory in porous media ...

...otation of the fluid]] due to the planetary rotation and [[Stratification (water)|stratification]] (layering). ...Conservation|conservation of momentum]] (or [[Newton's second law]]) and [[conservation of energy]]. The former leads to the [[Navier–Stokes equations]] which cann ...

{{Short description|Motion of water in the oceans}} '''Ocean dynamics''' define and describe the [[flow (physics)|flow]] of water within the oceans. Ocean temperature and motion fields can be separated in ...

...ed wave setup (in case of an increased level) and setdown (for a decreased water level); ...(algebra)|square]] of the wave height, and is only significant in shallow water; ...

...s that utilize the principles of [[open-channel flow]] to convey impounded water in order to prevent [[dam failure]]. They can function as principal spillwa ...apter=Structures |publisher=United States Department of Agriculture – Soil Conservation Service. |chapter-url= http://directives.sc.egov.usda.gov/OpenNonWebContent ...

...rd, Andrew D.|author2=Trimble, Stanley W.|name-list-style=amp|chapter=Soil conservation and sediment budgets|title=Environmental Hydrology|publisher=CRC Press|year ...rst1=Ralph A.|year=1977|title=Bed load transport by natural rivers|journal=Water Resources Research|volume=13|issue=2|pages=303–312|doi=10.1029/WR013i002p00 ...

...0(1), 1–14.</ref> The main limiting assumption required to use the finite water-content method is that the soil be homogeneous in layers. ...medium is divided into ''n'' uniform "bins" of <math>\Delta \theta</math> water content.]] ...

...tion processes are also known to exhibit mass transfer. The evaporation of water from a pond to the atmosphere, the purifying of blood in organs like the li ...the species conservation equation, which is similar in form to the energy conservation equation used in heat transfer. The concentration C of the species in the f ...

...s also inefficient, so it is used where the kinetic or potential energy of water is cheaply available. ...the chamber through another vertical pipe, called the raiser pipe, and the water leaves through a submerged drain near the bottom of the stilling chamber.<r ...

...f>{{cite journal|last=Watts|first=R.O.|title=Monte Carlo studies of liquid water|journal=Molecular Physics|date=1 October 1974|volume=28|issue=4|pages=1069– ...s in energy are summed, they do not exactly cancel, leading to poor energy conservation, a deficiency found whenever a spherical cut-off is used. The situation can ...

...ir]] (air can be considered a compressible fluid in fluid mechanics) and [[water]] in respectively the [[atmosphere]] and the [[ocean]]s. Examples of topogr ===Shallow water=== ...