Jet Guide, Meaning , Facts, Information and Description

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:

R is the common gas constant

T₁ is the absolute temperature at pressure P₁

z is

''c_p is the specific heat at constant pressure

''c_v is the specific heat at constant volume

z = 0.286 for air under 500 °C

z = 0.23 to 0.28 for most combustion products of fuels

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