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Exit Velocity in Performance Parameters Formulas
Exit Velocity refers to the speed at which gases expand at the exit of nozzle of a engine. And is denoted by V
e
. Exit Velocity is usually measured using the Meter per Second for Speed. Note that the value of Exit Velocity is always negative.
Formulas to find Exit Velocity in Performance Parameters
f
x
Velocity after Expansion given Ideal Thrust
Go
Performance Parameters formulas that make use of Exit Velocity
f
x
Thrust power
Go
f
x
Specific thrust
Go
f
x
Specific Thrust given Effective Speed Ratio
Go
f
x
Gross thrust
Go
f
x
Momentum Thrust
Go
f
x
Ideal Thrust of Jet Engine
Go
f
x
Mass Flow Rate given Ideal Thrust
Go
f
x
Flight Speed given Ideal Thrust
Go
f
x
Thrust given aircraft forward speed, velocity of exhaust
Go
f
x
Propulsive power
Go
f
x
Thermal Efficiency of Jet Engines given Effective Speed Ratio
Go
f
x
Effective speed ratio
Go
f
x
Propulsive efficiency given aircraft velocity
Go
f
x
Change in Kinetic Energy of Jet Engine
Go
List of variables in Performance Parameters formulas
f
x
Ideal Thrust
Go
f
x
Mass Flow Rate
Go
f
x
Flight Speed
Go
FAQ
What is the Exit Velocity?
Exit Velocity refers to the speed at which gases expand at the exit of nozzle of a engine. Exit Velocity is usually measured using the Meter per Second for Speed. Note that the value of Exit Velocity is always negative.
Can the Exit Velocity be negative?
Yes, the Exit Velocity, measured in Speed can be negative.
What unit is used to measure Exit Velocity?
Exit Velocity is usually measured using the Meter per Second[m/s] for Speed. Meter per Minute[m/s], Meter per Hour[m/s], Kilometer per Hour[m/s] are the few other units in which Exit Velocity can be measured.
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