Water Tunnel

	Water Tunnel Water tunnel may refer to: * Water tunnel (physical infrastructure), a tunnel used to transport water, typically underground * Qanat water management system * Water tunnel (hydrodynamic), an experimental facility used for testing the hydrodynamic behavior of submerged bodies in flowing water, similar to a wind tunnel See also * Water (other) * Tunnel (other) A tunnel is an underground passage such as: Tunnel or Tunnels may also refer to: Film and TV * ''The Tunnel'' (1915 film), German silent, based on science fiction novel ''Der Tunnel'' by Bernhard Kellermann * ''The Tunnel'' (1933 German-langua ... {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Water Tunnel (hydrodynamic) A water tunnel is an experimental facility used for testing the hydrodynamic behavior of submerged bodies in flowing water. It functions similar to a recirculating wind tunnel, but uses water as the working fluid, and related phenomena are investigated, such as measuring the forces on scale models of submarines or lift and drag on hydrofoils. Water tunnels are sometimes used in place of wind tunnels to perform measurements because techniques like particle image velocimetry (PIV) are easier to implement in water. For many cases as long as the Reynolds number is equivalent, the results are valid, whether a submerged water vehicle model is tested in air or an aerial vehicle is tested in water. For low Reynolds number flows, tunnels can be made to run oil instead of water. The advantage is that the increased viscosity will allow the flow to be a faster speed (and thus easier to maintain in a stable manner) for a lower Reynolds number. Whereas in wind tunnels the driving force is u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Water Tunnel (physical Infrastructure) Water tunnels are tunnels (below-ground channels) used to transport water to areas with large populations or agriculture. They are frequently part of aqueducts. Some aqueducts, such as the Delaware Aqueduct are single long tunnels. In other cases, such as the San Jacinto tunnel on the Colorado River Aqueduct, water tunnels form parts of far longer aqueducts. In cases where the outflow of a water tunnel is into an existing stream or river flowing to the point of water use, the term aqueduct is less likely to be used, as with the Harold D. Roberts Tunnel from Dillon Reservoir to the North Fork South Platte River. Notable water tunnels, or systems including water tunnels * Alva B. Adams Tunnel from the western slope of the Colorado River drainage to the eastern Front Range of Colorado, Angeles Tunnel 7.2 mile (11.6 km) Bagur Navile Tunnel 6 miles (9.7 km) * Bosporus Water Tunnel Chicago Tunnel and Reservoir Plan 109.4 miles (176.1 km) Denver Water Moffat Tunnel 6.2 mi ... [...More Info...] [...Related Items...] OR:** [Wikipedia] [Google] [Baidu]
picture info	Qanat A qanat or kārīz is a system for transporting water from an aquifer or water well to the surface, through an underground aqueduct; the system originated approximately 3,000 BC in what is now Iran. The function is essentially the same across North Africa and the Middle East but the system operates under a variety of regional names: ''qanat'' or kārīz in Iran, ''foggara'' in Algeria, ''khettara'' in Morocco, ''falaj'' in Oman, ''karez'' in Afghanistan, ''auyoun'' in Saudi Arabia, et al. The largest extant and functional qanat systems are located in Iran, Afghanistan, Oman, the oases of Turfan region of China, Algeria, and Pakistan. This is a system of water supply that allows water to be transported over long distances in hot dry climates without loss of much of the water to evaporation. The system has the advantage of being resistant to natural disasters such as earthquakes and floods, and to deliberate destruction in war. Furthermore, it is almost insensitive to the level ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Wind Tunnel Wind tunnels are large tubes with air blowing through them which are used to replicate the interaction between air and an object flying through the air or moving along the ground. Researchers use wind tunnels to learn more about how an aircraft will fly. NASA uses wind tunnels to test scale models of aircraft and spacecraft. Some wind tunnels are large enough to contain full-size versions of vehicles. The wind tunnel moves air around an object, making it seem as if the object is flying. Most of the time, large powerful fans suck air through the tube. The object being tested is held securely inside the tunnel so that it remains stationary. The object can be an aerodynamic test object such as a cylinder or an airfoil, an individual component, a small model of the vehicle, or a full-sized vehicle. The air moving around the stationary object shows what would happen if the object was moving through the air. The motion of the air can be studied in different ways; smoke or dye can be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Water (other) Water is a chemical substance with the formula H2O. A detailed description of the physical and chemical properties of water is at properties of water. Water or waters may also refer to: Liquids and related concepts Bodies of water or waterways * Water (s), the oceans of the Earth * Water, the name given to certain lakes in the Lake District of northern England. See List of lakes in the Lake District. * Waters, a Scots term for a type of river Other tangible liquids * Water, a type of horse jumping obstacle * Amniotic fluid, the liquid around a fetus released before birth as the "water breaks" * Drinking water * Stormwater Other uses * Water (astronomy), an area of the sky * Water (classical element) * Water (wuxing) Arts, entertainment and media Fictional entities * Water (''Lexx''), a fictional planet * The Water (Middle-earth), a fictional river Film * ''Water'' (1985 film), a British comedy film set in the Caribbean * ''Water'' (2005 film), an Oscar-nominated Canadia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]