Ramjet Engine: How Does It Work at Subsonic Speeds?

[Gazza2907]

I think i know how the ramjet works at supersonic speeds, because of the shock wave the air particles traveling through the inside of the tube converge and bump into each other and because the air cannot expand it slows down, increasing the pressure, so when the air escapes it expands very quickly accelerating the rocket.

But how does this system work without the shock wave (at subsonic speeds) does the air just move through the tube slower because it's an enclosed space and the air can't expand if it the particles bump into each other?

Anything else you know about how the ramjet works would be good as well.

 

[jack action]

They don't work at subsonic speeds. You need another engine on the aircraft to bring you to those higher speeds. A turbojet is usually place inside the ramjet.

Read this https://www.physicsforums.com/showpost.php?p=2755493&postcount=10" I wrote about jet engines for more info.