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Experiments with screens and grids for suppressing jet engine noise

From National Research Council Canada

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DOIResolve DOI: https://doi.org/10.4224/40003680
AuthorSearch for: 1
Affiliation
  1. National Research Council Canada. National Aeronautical Establishment
FormatText, Technical Report
Physical description32 p.
Abstract
Experiments were made with noise suppressors of conventional screen and newly developed grid type. These devices were installed in an exhaust duct of a jet engine test cell. The sound level reductions obtained which could be applied practically amounted to 16-1/2 db. Higher reductions (up to 20 db.) were penalized by the adverse influence of the suppressor on tailpipe temperature and engine thrust.
Publication date
PublisherNational Research Council Canada
Series
  • Laboratory Report (National Research Council Canada. National Aeronautical Establishment. Engine Laboratory), no. LR-231 (October 1958).
LanguageEnglish
Peer reviewedNo
NRC numberNRCC-0005824
NRC-5824
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Record identifier3c184022-85a8-4d29-9137-d74d6d7aca27
Record created2025-09-03
Record modified2025-11-03
Date modified: