1. Air Intake: The jet engine starts with an air intake that draws in large volumes of air from the atmosphere. This air is essential for the combustion process that occurs inside the engine.
2. Compression: The incoming air is compressed inside the engine by a series of fan blades or compressor blades. This compression increases the pressure and density of the air.
3. Fuel Injection: As the compressed air exits the compressor, it enters the combustion chamber. Here, fuel is injected into the high-pressure air. This mixture of compressed air and fuel is what powers the engine.
4. Combustion: Inside the combustion chamber, the fuel and compressed air mixture is ignited, causing a controlled explosion. The high temperature and pressure generated during combustion result in the expansion of gases.
5. Expansion and Exhaust: The hot gases produced by combustion flow through the turbine section of the engine. The turbine blades are connected to the engine's shaft and rotate as the hot gases pass through. This rotational energy is used to drive the compressor and other engine components.
6. Nozzle: After passing through the turbine, the high-energy gases are expelled through a nozzle at a high velocity. The nozzle shapes and directs the exhaust gases, generating a powerful thrust force.
7. Thrust Generation: The rapid expulsion of the high-velocity exhaust gases through the nozzle creates a force known as thrust. This force propels the jet aircraft forward, allowing it to fly.
By continuously drawing in air, compressing it, mixing it with fuel, burning the mixture, and expelling the hot gases through the nozzle, a jet engine generates the necessary thrust to power a jet aircraft and keep it in the air.