Jet propulsion is a method of thrust generation in which a vehicle or object moves forward by expelling high-speed exhaust gases. This process is commonly used in aircraft, rockets, and other types of vehicles to achieve propulsion. In jet propulsion, fuel is burned in a combustion chamber, creating a high-pressure and high-temperature gas. This gas is then expelled from the engine at high speeds through a nozzle, creating a thrust force in the opposite direction that propels the vehicle forward. Jet propulsion can be categorized into different types, such as turbojet, turbofan, and rocket propulsion, each with its own unique characteristics and applications. Research in jet propulsion focuses on optimizing engine efficiency, reducing emissions, improving performance, and developing new propulsion technologies for future aerospace applications.