page 3 Flashcards
1
Q
What shape accelerates the gas in the convergent exhaust duct?
A
The shape of the duct accelerates the gas
2
Q
At what point is the nozzle said to be ‘choked’?
A
The nozzle is said to be ‘choked’ when the exhaust velocity reaches the speed of sound in relation to the exhaust gas temperature
3
Q
What happens to the gas velocity as it enters the convergent section of the convergent-divergent nozzle?
A
The gas velocity increases with a corresponding fall in static pressure
4
Q
What happens to the gas velocity as it flows into the divergent section of the convergent-divergent nozzle?
A
The gas velocity progressively accelerates towards the open exit
