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Throttling |
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throttling [′thräd·əl·iŋ]
(aerospace engineering) The varying of the thrust of a rocket engine during powered flight. (control systems) Control by means of intermediate steps between full on and full off. (thermodynamics) An adiabatic, irreversible process in which a gas expands by passing from one chamber to another chamber which is at a lower pressure than the first chamber. Throttling the flow of a fluid, vapor, or gas through a throttle—a local hydrodynamic resistance to a current (narrowing of a pipe, valve, or tap)—during which there is a change in pressure and temperature (the Joule-Thomson effect). The throttling effect is used mainly for copious cooling and liquefaction of gases. It is widely used to measure and regulate the consumption of liquids and gases. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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