Engine surge | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-07-10

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Compressor_stall


00:00:53 1 Types
00:01:05 1.1 Rotating stall
00:03:01 1.2 Axi-symmetric stall or compressor surge
00:04:27 2 Causes
00:05:23 2.1 Factors which erode compressor surge margin
00:07:37 3 Effects
00:08:27 4 Response and recovery
00:09:00 5 Notable stall occurrences
00:09:10 5.1 Aircraft development
00:09:20 5.1.1 Rolls-Royce Avon engine
00:10:01 5.1.2 Olympus 593
00:10:38 5.2 Aircraft crashes
00:10:47 5.2.1 U.S. Navy F-14 crash
00:11:22 5.2.2 Southern Airways Flight 242
00:12:00 5.2.3 1997 Irkutsk Antonov An-124 crash
00:12:52 5.2.4 Trans World Airlines Flight 159
00:13:47 5.2.5 Scandinavian Airlines Flight 751
00:14:35 5.2.6 US Airways Flight 1549
00:15:53 6 See also



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SUMMARY
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A compressor stall is a local disruption of the airflow in the compressor of a gas turbine or turbocharger. A stall that results in the complete disruption of the airflow through the compressor is referred to as a compressor surge. The severity of the phenomenon ranges from a momentary power drop barely registered by the engine instruments to a complete loss of compression in case of a surge, requiring adjustments in the fuel flow to recover normal operation.
Compressor stall was a common problem on early jet engines with simple aerodynamics and manual or mechanical fuel control units, but has been virtually eliminated by better design and the use of hydromechanical and electronic control systems such as Full Authority Digital Engine Control. Modern compressors are carefully designed and controlled to avoid or limit stall within an engine's operating range.