MadSci Network: Engineering
Query:

Re: What is the origin of the sound when a centrifugal compressor surges?

Date: Mon Nov 1 08:49:34 1999
Posted By: Avra Brahma, Grad student, AE/ME
Area of science: Engineering
ID: 936923115.Eg
Message:

it is the sound of air expanding. as it expands, its velocity rises and
when it goes supersonic ( choked flow), it makes this sound.


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