NASA NTRS · 19790000265
Simple noise suppressor for vented high-pressure gas
Abstract
Technique significantly reduces noise level. It uses principle of overexpansion of supersonic jet to create a multiple, strong shock-wave system in pipe, thereby decreasing exit velocity of jet and associated jet-mixing noise.
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Huff, R. G.. 1979-12-01. Simple noise suppressor for vented high-pressure gas. https://ntrs.nasa.gov/citations/19790000265
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