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Determination of underwater radiated noise of a marine propeller using different prediction methods
Citation Link: https://doi.org/10.15480/882.9309
Publikationstyp
Conference Paper
Date Issued
2024-04-04
Sprache
English
Author(s)
Mecklenburger Metallguss GmbH (MMG), Waren (Muritz), Germany
Mecklenburger Metallguss GmbH, Waren, Germany
Mecklenburger Metallguss GmbH (MMG), Waren (Muritz), Germany
TORE-DOI
Start Page
683
End Page
688
Citation
8th International Symposium on Marine Propulsors (smp 2024)
Contribution to Conference
Publisher
Norwegian University of Science and Technology, Department of Marine Technology
ISBN
978-82-691120-5-4
Peer Reviewed
true
The significant environmental impact of underwater radiated noise (URN) on marine life due to on-going increase in shipping noise worldwide is recognized by International Maritime Organization (IMO) as a harmful form of pollution. Machinery, hull vibration and propellers have been identified as sources for shipping noise as the major stressor to the marine fauna. As one of the dominant sources of URN of ships is propeller cavitation, this paper follows the validation of selected methods to derive sound pressure signals from cavitation volume. Therefore, different numerical methods such as RANS and panel method are used to compute the cavitation volume for a chosen number of test cases. The results are further processed by analytical calculation of sound pressure by deriving the numerically computed volume. Using the Ffowcs Williams-Hawkings (FWH) method, the numerical evaluation will be used for verification of the analytical approach. The overall findings respective predicted sound levels are compared with data from full-scale measurements. The results will be discussed also in respect to the usage in the design process. An inclusion of the most efficient, feasible and reliable noise predicting method into the design process shall be enabled by the findings of this paper.
Subjects
Underwater Radiated Noise
Propeller
Cavitation
CFD
DDC Class
620: Engineering
Publication version
publishedVersion
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Name
Wendland-DeterminationOfUnderwaterRadiatedNoiseOfAMarinePropellerUsingDif-1118-1-final.pdf
Type
Main Article
Size
2.18 MB
Format
Adobe PDF