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Publisher DOI: 10.1002/pamm.202000315
Title: Partitioned simulation of the acoustic behavior of flexible marine propellers using finite and boundary elements
Language: English
Authors: Radtke, Lars 
Lampe, Tobias 
Abdel-Maksoud, Moustafa  
Düster, Alexander 
Issue Date: 25-Jan-2021
Publisher: Wiley-VCH
Source: Proceedings in applied mathematics and mechanics 20 (1): e202000315 (2021-01-25)
Abstract (english): 
In the last years, classification societies have announced several specifications regarding the limitation of the noise level of ships. Accordingly, the prediction of the acoustic signature of cavitating propellers, which are the main source for noise generation, has attracted a lot of interest. For an accurate numerical simulation of the underlying physics, the deformation of the propeller has to be taken into account, which results in a fluid-structure interaction (FSI) problem.
In order to utilize different discretization methods for the individual sub-problems, we apply a partitioned solution approach. This makes it possible to use a finite element solver for the structural problem, while a boundary element solver is used for the fluid problem. From the solution of the FSI problem, the acoustic pressure in the far field is obtained using the Ffowcs William-Hawking equation.
Conference: 91st Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2021) 
DOI: 10.15480/882.4761
ISSN: 1617-7061
Journal: Proceedings in applied mathematics and mechanics 
Institute: Konstruktion und Festigkeit von Schiffen M-10 
Fluiddynamik und Schiffstheorie M-8 
Document Type: Chapter/Article (Proceedings)
Project: Projekt DEAL 
Funded by: Deutsche Forschungsgemeinschaft (DFG) 
More Funding information: The authors gratefully acknowledge the support provided by the DFG (Deutsche Forschungsgemeinschaft) under the grant numbers DU 405/13-1 and AB 112/12-1.
License: CC BY-NC 4.0 (Attribution-NonCommercial) CC BY-NC 4.0 (Attribution-NonCommercial)
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