Stall (fluid dynamics)In fluid dynamics, a stall is a reduction in the lift coefficient generated by a foil as angle of attack exceeds its critical value. The critical angle of attack is typically about 15°, but it may vary significantly depending on the fluid, foil – including its shape, size, and finish – and Reynolds number.
AirfoilAn airfoil (American English) or aerofoil (British English) is a streamlined body that is capable of generating significantly more lift than drag. Wings, sails and propeller blades are examples of airfoils. Foils which work in a similar way submerged in water are called hydrofoils. When oriented at a suitable angle, a solid body moving through a fluid deflects the passing fluid, resulting in a force on the airfoil in the direction opposite to the deflection.Compressor mapA compressor map is a chart which shows the performance of a turbomachinery compressor. This type of compressor is used in gas turbine engines, for supercharging reciprocating engines and for industrial processes, where it is known as a dynamic compressor. A map is created from compressor rig test results or predicted by a special computer program. Alternatively the map of a similar compressor can be suitably scaled.
Fuel control unitA fuel control unit, or FCU, is a control system designed to control the delivery of fuel for gas-turbine engines. Fundamentals of turbine engine controlGas-turbine engines are primarily controlled by the amount of fuel supplied to the combustion chambers.
CompressorA compressor is a mechanical device that increases the pressure of a gas by reducing its volume. An air compressor is a specific type of gas compressor. Many compressors can be staged, that is, the gas is compressed several times in steps or stages, to increase discharge pressure. Often, the second stage is physically smaller than the primary stage, to accommodate the already compressed gas without reducing its pressure.
Aircraft carrierAn aircraft carrier is a warship designed to carry, launch, recover and support aircraft at sea, equipped with a full-length flight deck and hangar facilities that allow it to serve as a mobile, seagoing airbase. Typically it is the capital ship of a fleet (known as a carrier battle group), as it allows a naval force to project seaborne air power far from national territory without depending on local airfields for the staging of aircraft operations.
FADECIn aviation, a full authority digital engine (or electronics) control (FADEC) () is a system consisting of a digital computer, called an "electronic engine controller" (EEC) or "engine control unit" (ECU), and its related accessories that control all aspects of aircraft engine performance. FADECs have been produced for both piston engines and jet engines.
RunwayIn aviation, a runway is an elongated, rectangular surface designed for the landing and takeoff of an aircraft. Runways may be a human-made surface (often asphalt, concrete, or a mixture of both) or a natural surface (grass, dirt, gravel, ice, sand or salt). Runways, taxiways and ramps, are sometimes referred to as "tarmac", though very few runways are built using tarmac.Axial symmetryAxial symmetry is symmetry around an axis or line (geometry). An object is said to be axially symmetric if its appearance is unchanged if transformed around an axis. The main types of axial symmetry are reflection symmetry and rotational symmetry (including circular symmetry for plane figures and cylindrical symmetry for surfaces of revolution).
Cylindrical coordinate systemA cylindrical coordinate system is a three-dimensionalcoordinate system that specifies point positions around a main axis (a chosen directed line) and an auxiliary axis (a reference ray).
TurbochargerIn an internal combustion engine, a turbocharger (also known as a turbo or, formerly, a turbosupercharger) is a forced induction device that compresses the intake air, forcing more air into the engine in order to produce more power for a given displacement.
Gas-turbine engineType of continuous-flow turbine engineExamples of gas-turbine configurations: (1) turbojet, (2) turboprop, (3) turboshaft (shown as electric generator), (4) high-bypass turbofan, (5) low-bypass afterburning turbofanA gas turbine is a complete continuous-flowinternal combustion engine in which air is compressed, fuel is burned in the compressed air, and the resulting hot gas expands through a turbine.*As an Amazon Associate I earn from qualifying purchases.