Ramjet - Wikipedia A ramjet is a form of airbreathing jet engine that requires forward motion of the engine to provide air for combustion Ramjets work most efficiently at supersonic speeds around Mach 3 (2,300 mph; 3,700 km h) and can operate up to Mach 6 (4,600 mph; 7,400 km h)
Ramjet Scramjet Thrust - NASA A ramjet engine provides a simple, light propulsion system for high speed flight Likewise, the supersonic combustion ramjet, or scramjet, provides high thrust and low weight for hypersonic flight speeds
How Ramjets Work - HowStuffWorks A ramjet is a type of air-breathing jet engine that operates on the principle of compressing incoming air without the need for rotating parts It relies on the high-speed forward motion of the aircraft to compress air, making it suitable for supersonic and hypersonic flight
Ramjets scramjets aerodynamics: A progress review This special issue focuses on summarizing and overviewing the latest research status of the complex interaction flows in the ramjet inlet isolator, the composite propellants and its combustion in the solid-fuel ramjet, standing oblique detonation inside the supersonic combustor, and the exhaust
ramjet - 知乎 Therefore, for speeds above Mach 3 and up until Mach 6, an engine type called ramjet is often used -- so called because it literally rams into the air It has no moving parts, unlike turbojets, but it doesn't work at all at speeds below Mach 3
Jet engine - Ramjets, Supersonic Combustion | Britannica This combination of circumstances gives rise to the ramjet, a jet engine in which the pressure increase is attributable only to the ram effect of the high flight speed; no turbomachinery is involved, and the main thrust producer is an afterburner
Ramjets and Scramjets - Purdue University A ramjet uses the ram effect, compression in an inlet, for all of the compression in an engine Hence, it has no rotor or blades; the air is compressed by the inlet (using a series of internal external shocks), ignited, and shot out the back by the nozzle
Ramjet Propulsion - NASA In a ramjet, the high pressure is produced by "ramming" external air into the combustor using the forward speed of the vehicle The external air that is brought into the propulsion system becomes the working fluid, much like a turbojet engine