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  4. Entwicklung einer numerischen Methode zur Vorhersage der hydroakustischen Schallabstrahlung von Schiffspropellern
 
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Entwicklung einer numerischen Methode zur Vorhersage der hydroakustischen Schallabstrahlung von Schiffspropellern

Citation Link: https://doi.org/10.15480/882.2953
Publikationstyp
Doctoral Thesis
Date Issued
2020-10-02
Sprache
German
Author(s)
Göttsche, Ulf  orcid-logo
Advisor
Abdel-Maksoud, Moustafa  orcid-logo
Referee
Krüger, Stefan  
Title Granting Institution
Technische Universität Hamburg
Place of Title Granting Institution
Hamburg
Examination Date
2020-09-29
Institut
Fluiddynamik und Schiffstheorie M-8  
TORE-DOI
10.15480/882.2953
TORE-URI
http://hdl.handle.net/11420/7441
Citation
Technische Universität Hamburg (2020)
In this dissertation a method for the prediction of hydroacoustic sound emission of propellers in the early design stage is developed. The sound prediction is performed by a hybride approach. A boundary element method is used for flow calculation and the Ffowcs Williams-Hawkings-equation for hydroacoustic sound prediction, extended to considering reflections.

The method is validated by a calculation of a propeller behind a ship. The calculated sound pressure levels does agree well with measured data. Additional the simulation results are compared with exisitng guidelines for processing of measurement data.
Subjects
Propellerschall
Ffowcs-Wiliams Hawkings
FWH
Randelementmethode
Schichtkavitation
propeller underwater noise
boundary element method
sheet cavitation
DDC Class
600: Technik
Lizenz
https://creativecommons.org/licenses/by/4.0/
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