reaction-propulsion engine
Noun: A reaction-propulsion engine is a type of engine, such as a jet or rocket engine, that generates thrust for propulsion based on the principle of reaction. This principle, derived from Newton's third law of motion, states that for every action, there is an equal and opposite reaction. The engine produces thrust by expelling a high-speed stream of fluid (such as exhaust gases) rearward, which creates a forward-acting reaction force that propels the vehicle.
The term is a technical and specific descriptor used in aerospace and mechanical engineering contexts. It categorizes engines by their fundamental operating principle rather than by their specific design or fuel type. * The fundamental principle behind a reaction-propulsion engine is Newton's third law. * Engineers studied the efficiency of the new reaction-propulsion engine design.
- A rocket lifting off from the launchpad is a dramatic example of a reaction-propulsion engine in action.
- The course covered the history and mechanics of the reaction-propulsion engine.
- Unlike propeller-driven aircraft, this vehicle is powered solely by a reaction-propulsion engine.
- The term is often used in a generic or classifying sense. Specific implementations like "turbojet engine" or "liquid-fuel rocket engine" are types of reaction-propulsion engines.
- It can be used in contrast to other propulsion methods, such as propeller-based propulsion or wheel-driven propulsion.
- Reaction engine: A more common and concise synonym.
- Jet engine: A common type of reaction-propulsion engine that uses atmospheric air for combustion.
- Rocket engine: A type of reaction-propulsion engine that carries both its own fuel and oxidizer and can operate in the vacuum of space.
- Propulsion: (Noun) The act or process of driving something forward.
- Reaction engine
- Jet engine (in many, but not all, contexts, as "jet engine" is a subset)
- Rocket engine (in specific contexts, as it is also a subset)
- Thrust: The force produced by a reaction-propulsion engine.
- Exhaust stream / Jet: The high-speed stream of fluid expelled by the engine.
- Newton's third law of motion: The physical principle underlying the engine's operation.
- Aerodynamic propulsion: A broader category of propulsion involving motion through a fluid (like air), within which reaction-propulsion is a key method.
- a jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream