Thrust
The thrust from a jet engine is determined by the velocity of exhaust gases measured relative to the engine.
The velocity of the exhaust gas as it leaves a jet engine is :
where
-
is the specific enthalpy of the gas leaving the turbine and entering the propelling nozzle is the specific enthalpy of the gas after it has left the propelling nozzle
Alternatively, is related to the temperatures of the exhaust gas:
where
-
is the specific heat of exhaust gas at constant pressure is the temperature of the gas leaving the turbine and entering the propelling nozzle is the temperature of the gas after it has left the propelling nozzle
Read more about this topic: Jet Engine Performance
Famous quotes containing the word thrust:
“The pessimist ... is seldom an agitating individual. His creed breeds indifference to others, and he does not trouble himself to thrust his views upon the unconvinced.”
—Agnes Repplier (1858–1950)
“Freedom of choice for women, at the expense of the caring, warmth, and sensitivity to others so often associated with them, may be empty. In the thrust to redefine male and female roles, women must not become men; nor can men be permitted the continual dehumanization of their roles.”
—Kathleen Weibel (b. 1945)
““I sawe Phoebus thrust out his golden hedde,
Upon her to gaze:
But when he sawe how broade her beames did spredde
It did him amaze.”
—Edmund Spenser (1552?–1599)