A Hybrid Numerical Method for Investigating Underwater Sound Propagation of Cavitating Propellers

Göttsche, Ulf; Scharf, Martin; Berger, Stephan; Abdel-Maksoud, Moustafa

Publisher URL:	http://www.marinepropulsors.com/proceedings/2017/WA1-3.pdf
Title:	A Hybrid Numerical Method for Investigating Underwater Sound Propagation of Cavitating Propellers
Language:	English
Authors:	Göttsche, Ulf Scharf, Martin Berger, Stephan Abdel-Maksoud, Moustafa
Editor:	Sánchez-Caja, Vladimir
Keywords:	Boundary element method; Propeller noise; Sheet cavitation; Ffowcs-Wiliams Hawkings; FWH
Issue Date:	Jun-2017
Publisher:	VTT Technical Research Centre of Finland Ltd
Source:	International Symposium on Marine Propulsors (smp 2017)
Abstract (english):	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.
Conference:	5th International Symposium on Marine Propulsors (smp 2017)
URI:	http://hdl.handle.net/11420/8098
Institute:	Fluiddynamik und Schiffstheorie M-8
Document Type:	Chapter/Article (Proceedings)
Project:	Entwicklung eines hybriden Verfahrens zur Berechnung der Schallabstrahlung von Schiffspropellern - Effiziente Simulation der Schallabstrahlung von Propellern unter Berücksichtigung von Kavitation m.e. hybriden Randelementeverfahren
More Funding information:	Bundesministerium für Wirtschaft und Technologie (BWWi)
Appears in Collections:	Publications without fulltext