Aviation dictionary. 2014.
Surge — may refer to: *Surge (soft drink), a soft drink formerly made by The Coca Cola Company. *Jerk or surge, the rate of change of acceleration in physics *Storm surge, the onshore gush of water associated with a low pressure weather system… … Wikipedia
Compressor map — Each compressor (or fan) in a gas turbine engine has an operating map. Complete maps are either based on compressor rig test results or are predicted by a special computer program. Alternatively the map of a similar compressor can be suitably… … Wikipedia
Compressor stall — A compressor stall is a situation of abnormal airflow resulting from a stall of the aerofoils within the compressor of a jet engine. Stall is found in dynamic compressors, particularly axial compressors, as used in jet engines and turbochargers… … Wikipedia
surge line — The boundary between the gas turbine operating region and the region where the compressor surge is certain … Aviation dictionary
compressor stall-margin curve — An operating curve of a gas turbine engine, which shows the relationship between the compression ratio of the engine and the mass airflow that must be maintained throughout the engine. If either of these factors goes out of limits, a compressor… … Aviation dictionary
surge line — Line on compressor map which represents the minimum stable flow at each pressure ratio, below which the compressor output is unsteady … Dictionary of automotive terms
surge — An unstable condition in which the airflow breaks down over the compressor or turbine because the blades are at very high angles of attack. This condition can occur either because the aircraft is flying at a high angle of attack or very low… … Aviation dictionary
Centrifugal compressor — Centrifugal compressors, sometimes termed radial compressors, are a sub class of dynamic axisymmetric work absorbing turbomachinery.[1] Centrifugal impeller with a highly polished surface likely to improve performance … Wikipedia
Axial compressor — Axial compressors are rotating, aerofoil based compressors in which the working fluid principally flows parallel to the axis of rotation. This is in contrast with centrifugal, axi centrifugal and mixed flow compressors where the air may enter… … Wikipedia
Turbofan — [ CFM56 3 turbofan, lower half, side view.] A turbofan is a type of jet engine, similar to a turbojet. It essentially consists of a ducted fan with a smaller diameter turbojet engine mounted behind it that powers the fan. Part of the airstream… … Wikipedia
