Prediction of radiated noise from marine propellers

海洋船舶的水下噪声是科研、渔业和军事舰船面临的一个重要问题，是海洋环境污染的主要来源。水下噪音的主要来源是螺旋桨。这项工作将开发具有实验验证的数值模型，可以准确预测船舶螺旋桨产生的噪声源和船舶由于螺旋桨运动而产生的声学特征。这项工作对澳大利亚的建筑和军事海事工业具有重要意义。该项目开发的技术也适用于其他行业的转子，如飞机、直升机和风力涡轮机。

Underwater noise radiated from marine vessels is a significant problem for research, fishing and military vessels, and is a major source of pollution in the marine environment. The major source contributing to underwater noise is due to the propeller. This work will develop numerical models with experimental validation that can accurately predict the sources of noise generated by marine propellers and acoustic signatures of marine vessels due to propeller motion. This work has great significance for Australia’s construction and military maritime industries. The technologies developed in this project are also applicable to rotors in other industries such as in aircraft, helicopters and wind turbines.