Discontinuities in Acoustic Wave-guide and the Reciprocity

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Fultus Corporation, 2007 - Science - 47 pages
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This work includes numerical analysis of discontinuities in acoustic wave-guide and their properties in multi-mode case. It was suggested new version of reciprocity relations between wave-guide modes: between incident and transmitted and between incident and reflected modes. This new version of reciprocity relations transforms into old one in a case of single traveling mode.
 

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Contents

Abstract
5
Introduction
7
Transmission into smaller tube
19
Transmission into larger tube
25
Discontinuity rigid diaphragm with coaxial opening
31
Numerical test of the reciprocity properties
35
Conclusion
45
References
47
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