Engine Intakes

Question 1

What is the max speed a gas turbine compressor can accept?

Answer 1

0.4 Mach

Question 2

What is the least complicated engine design?

Answer 2

Normal shock diffuser inlet

Question 3

How does a normal shock diffuser inlet slow air to subsonic velocity?

Answer 3

With a single normal shockwave

Question 4

Where is a normal shock diffuser inlet used?

Answer 4

For low supersonic speeds where normal shockwave isn’t too strong

Question 5

What does a converging duct mean for velocity and static pressure?

Answer 5

Increased velocity and decreased static pressure and vice versa for diverging

Question 6

How does an oblique shock inlet work?

Answer 6

Used external oblique shockwaves to slow supersonic airflow before normal shockwave occurs

Question 7

What are the two types of oblique shock inlet?

Answer 7

Single and multiple

Question 8

What does a variable supersonic inlet do?

Answer 8

Varies its shape with inlet flow direction and Mach no. To optimise itself