Other Definitions
jet (dict)
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Jet - For alternative meanings, see Jet (disambiguation).
A jet is a stream of fluid produced by discharge through an orifice into free space. Since gases are compressible fluids, the velocity attained by a jet of gas cannot be determined by Bernoulli's principle. Instead, if one uses adiabatic expansion from P1 to P2 in a properly shaped nozzle, the ideal velocity of a gas jet is: -
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- R is the common gas constant
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- T1 is the absolute temperature at pressure P1
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- z is
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- cp is the specific heat at constant pressure
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- cv is the specific heat at constant volume
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- z = 0.286 for air under 500 C
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- z = 0.23 to 0.28 for most combustion products of fuels
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