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A Hybrid Numerical Method for Investigating Underwater Sound Propagation of Cavitating Propellers
Publikationstyp
Conference Paper
Date Issued
2017-06
Sprache
English
Herausgeber*innen
Institut
TORE-URI
Volume
3
Start Page
520
End Page
527
Citation
International Symposium on Marine Propulsors (smp 2017)
Contribution to Conference
Publisher
VTT Technical Research Centre of Finland Ltd
The present article deals with the prediction of the underwater noise induced by ship propellers under consideration of sheet cavitation on the propeller blades. The calculation method is a hybrid approach combining a boundary element calculation method with the Ffowcs-Williams Hawkings equation. The method is applied to different simulation cases with increasing complexity. The final case considers the noise propagation in full-scale for a cavitating propeller in combination with a part of a ship stern. This simulation result is compared to a full-scale measurement.
Subjects
Boundary element method
Propeller noise
Sheet cavitation
Ffowcs-Wiliams Hawkings
FWH
More Funding Information
Bundesministerium für Wirtschaft und Technologie (BWWi)