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Predicting the Radiated Noise of a Submarine Propeller with Different Types of Control Surfaces.

Authors :
Jui-Hsiang Kao
Shang-Sheng Chin
Fang-Nan Chang
Yu-Han Tsai
Hua-Tung Wu
Huan-Jia Xu
Source :
Journal of Ship Research; Dec2022, Vol. 66 Issue 4, p335-348, 14p
Publication Year :
2022

Abstract

The objective of this paper is to predict the noise radiated from submarine propellers with different control surface types (the cross- and X-type). When the propellers are free from cavitation, such as those of submarines at a diving depth, the radiated noise dominate, due to unsteady propeller forces. A well-known submarine model (DARPA SUBOFF) is taken as the computing sample. Simulations for hydrodynamics, including stern wakes and unsteady propeller forces, are carried out by using CFD (Computational Fluid Dynamics) technology, and the results are compared with the experimental data. The accuracy of the predicted noise depends on the CFD results. Comparisons between the CFD results and the experimental data are in good agreement. The CFD results are treated as dipole strengths in the linear wave theory to predict the radiated noise caused by the unsteady forces of the propeller. It is found that, when the control surface is of the X-type, the propeller inflow is more uniform, and the radiated noise can be decreased by about 5 dB compared to the cruciform control surface. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00224502
Volume :
66
Issue :
4
Database :
Complementary Index
Journal :
Journal of Ship Research
Publication Type :
Academic Journal
Accession number :
160851066
Full Text :
https://doi.org/10.5957/JOSR.07190038