Computational prediction of underwater radiated noise of cavitating marine propellers: On the accuracy of semi-empirical models

作     者：Kalikatzarakis, Miltiadis Coraddu, Andrea Atlar, Mehmet Gaggero, Stefano Tani, Giorgio Villa, Diego Oneto, Luca 

作者机构：Univ Strathclyde Dept Naval Architecture Ocean & Marine Engn Glasgow Lanark Scotland Delft Univ Technol Dept Maritime & Transport Technol Delft Netherlands Univ Genoa Polytech Sch DITEN Genoa Italy Univ Genoa DIBRIS Genoa Italy 

出 版 物：《OCEAN ENGINEERING》 (海洋工程)

年 卷 期：2022年第259卷

核心收录：

学科分类：07[理学] 0707[理学-海洋科学] 0824[工学-船舶与海洋工程] 0814[工学-土木工程] 

基　　金：The authors would like to express their gratitude to Dr. Batuhan Aktas  who kindly provided the experimental data used in the present work 

主　　题：Underwater radiated noise Semi-empirical model Marine propeller Cavitation Validation test Tip-vortex cavitation Sheet cavitation 

摘      要：The potential impact of underwater radiated noise from maritime operations on marine fauna has become an important issue. The most dominant noise source on a propeller-driven vessel is propeller cavitation, producing both structure-borne and radiated noise, with a broad spectrum that covers a wide range of frequencies. To ensure acceptable noise levels for sustainable shipping, accurate prediction of the noise signature is essential, and procedures able to provide a reliable estimate of propeller cavitation noise are becoming a fundamental tool of the design process. In this work, we investigate the potential of using computationally cheap methods for the prediction of underwater radiated noise from cavitating marine propellers. We compare computational and experimental results on a subset of the Meridian standard propeller series, behind different severities of axial wake, for a total of 432 experiments. The results indicate that the approaches employed can be a convenient solution for noise analysis during the design process.