Abstract
A test case is presented demonstrating how to determine representative point sources along the cross-section of a duct that produce the appropriate response downstream even if a downstream modification is made. One end of a duct is attached to a source room with loudspeakers. The source is represented by determining acoustic blocked sources downstream of the source room. These blocked sources are determined along the cross-section of a duct using an inverse approach similar to transfer path analysis. It is demonstrated that these acoustic blocked sources can then be used to predict the response at other positions downstream of the interface at frequencies above the plane wave cut-off both in the original configuration and after a silencer is added. The approach is promising for source identification in HVAC equipment and other low flow applications.
| Original language | English |
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| Title of host publication | Proceedings of 2020 International Congress on Noise Control Engineering, INTER-NOISE 2020 |
| Editors | Jin Yong Jeon |
| ISBN (Electronic) | 9788994021362 |
| State | Published - Aug 23 2020 |
| Event | 49th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2020 - Seoul, Korea, Republic of Duration: Aug 23 2020 → Aug 26 2020 |
Publication series
| Name | Proceedings of 2020 International Congress on Noise Control Engineering, INTER-NOISE 2020 |
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Conference
| Conference | 49th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2020 |
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| Country/Territory | Korea, Republic of |
| City | Seoul |
| Period | 8/23/20 → 8/26/20 |
Bibliographical note
Publisher Copyright:© Proceedings of 2020 International Congress on Noise Control Engineering, INTER-NOISE 2020. All rights reserved.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
ASJC Scopus subject areas
- Acoustics and Ultrasonics