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The influence of geometry on the acoustic characteristics of duct bends for higher order modes

✍ Scribed by A. Cabelli; I.C. Shepherd

Publisher
Elsevier Science
Year
1981
Tongue
English
Weight
605 KB
Volume
78
Category
Article
ISSN
0022-460X

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✦ Synopsis

A two-dimensional finite element technique, corroborated with experimental results, was used to explore the acoustic characteristics of 90 ~ bends when cross modes propagate. The influence of changes in geometry on these characteristics was established over a range of inner and outer radii and the effects of including a turning vane were examined. The energy reflected was related where possible to the aerodynamic characteristics.

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