syphon - определение. Что такое syphon
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Что (кто) такое syphon - определение

DEVICE THAT ALLOWS THE TRANSFER OF LIQUID THROUGH A TUBE VIA HYDROSTATIC PRESSURE
Syphon; Inverted siphon; Oklahoma credit card; Syphen; Siphen; Cyphen; Ciphen; Siphons; Siphonic; Siphoned; Siphoning; Ciphon; Syphone; Siphone; Syphoning; Siphon.; Pascal's siphon; Inverted syphon
  • Demonstration of siphoning tropical fruit punch with a flying-droplet siphon
  • Water seal under a sink. Inverted siphoning occurs below the line "A".
  • The chain model, where the section marked "B" pulls down because it is heavier than the section "A", is a flawed but useful analogy to the operation of a siphon.
  • In the flying-droplet siphon, surface tension pulls the stream of liquid into separate droplets inside of a sealed air-filled chamber, preventing the liquid going down from having contact with the liquid going up, and thereby preventing liquid tensile strength from pulling the liquid up. It also demonstrates that the effect of atmospheric pressure at the entrance is not canceled by the equal atmospheric pressure at the exit.
  • Siphon principle
  •  An example of equal and opposite forces that would seem to cancel each other, yet the seemingly cancelled force from the left, still pushes the object up, similar to how the equal and opposite atmospheric pressure at each end of a siphon, that would seem to cancel, leaves atmospheric pressure still able to push the liquid up. (The cars are not bound to each other, so they don't pull on each other, only push.)
  • Pascal's siphon, showing two beakers of mercury inside a container of water, demonstrating that a siphon works by atmospheric pressure, not that "nature abhors a vacuum"
  • A siphon used for [[homebrewing beer]]
  • Air-start siphon. When the column of liquid is allowed to fall from C down to D, liquid in the upper reservoir will flow up to B and over the top.<ref name="Richert Binder 2011"/><ref name=micolich/> No liquid tensile strength is needed to pull the liquid up.
  • url=http://www.fmf.uni-lj.si/~planinsic/PEM/pulley%20siphon.wmv}}</ref>
  • Siphon bottles
  • fermentation]]
  • Bernoulli's equation]]
  • Siphon coffee brewer: when warmed by a heat source (A), vapor pressure increases in the lower chamber (B), forcing the water downwards (C) and through the central pipe into the upper chamber (D) where it is mixed with the coffee grounds. When the heat is removed, the water flows back down.

syphon         
n.
See syphon.
syphon         
see siphon
Syphon         
·noun ·see Syphon.

Википедия

Siphon

A siphon (from Ancient Greek: σίφων, romanized: síphōn, "pipe, tube", also spelled nonetymologically syphon) is any of a wide variety of devices that involve the flow of liquids through tubes. In a narrower sense, the word refers particularly to a tube in an inverted "U" shape, which causes a liquid to flow upward, above the surface of a reservoir, with no pump, but powered by the fall of the liquid as it flows down the tube under the pull of gravity, then discharging at a level lower than the surface of the reservoir from which it came.

There are two leading theories about how siphons cause liquid to flow uphill, against gravity, without being pumped, and powered only by gravity. The traditional theory for centuries was that gravity pulling the liquid down on the exit side of the siphon resulted in reduced pressure at the top of the siphon. Then atmospheric pressure was able to push the liquid from the upper reservoir, up into the reduced pressure at the top of the siphon, like in a barometer or drinking straw, and then over. However, it has been demonstrated that siphons can operate in a vacuum and to heights exceeding the barometric height of the liquid. Consequently, the cohesion tension theory of siphon operation has been advocated, where the liquid is pulled over the siphon in a way similar to the chain fountain. It need not be one theory or the other that is correct, but rather both theories may be correct in different circumstances of ambient pressure. The atmospheric pressure with gravity theory obviously cannot explain siphons in vacuum, where there is no significant atmospheric pressure. But the cohesion tension with gravity theory cannot explain CO2 gas siphons, siphons working despite bubbles, and the flying droplet siphon, where gases do not exert significant pulling forces, and liquids not in contact cannot exert a cohesive tension force.

All known published theories in modern times recognize Bernoulli’s equation as a decent approximation to idealized, friction-free siphon operation.

Примеры употребления для syphon
1. The fictional transactions were just a useful way to syphon off money from Afinsa, the prosecutor said.
2. LORENZO, Texas –– With the price of diesel skyrocketing, farmers and ranchers around the country are being targeted by ne‘er–do–wells armed with syphon hoses and pumps.
3. Truckers say bribes are usually between 50p and Ł30 and that policemen brutalise the drivers and vandalise their vehicles or simply syphon off their fuel.
4. Joe Barton, R–Texas, said he was concerned the Energy Department might syphon money from a fund for developing a permanent nuclear waste repository _ essentially Yucca Mountain if it completed _ into the Global Nuclear Energy Partnership.
5. Joe Barton, R–Texas, said he was concerned the Energy Department might syphon money from a fund for developing a permanent nuclear waste repository – essentially Yucca Mountain if it completed – into the Global Nuclear Energy Partnership.