Dominant flow noise source identification for ducted marine propellers

涵道船用螺旋桨的主导流噪声源识别

• 批准号: DP200102366
• 负责人: Prof Nicole Kessissoglou
• 金额: $ 28.46万
• 依托单位: The University of New South Wales
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2021
• 资助国家: 澳大利亚
• 起止时间: 2021-01-06 至 2024-01-05
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP200102366
• 关键词: Dominant; flow; noise; source; identification

Ducted marine propellers are becoming an increasing alternative to conventional open propellers. Understanding flow-induced noise generated by ducted propellers is a key consideration in the design process to minimise noise emission. This project aims to develop new methods to identify turbulent flow sources of a ducted marine propeller that dominate sound. High-fidelity numerical methods will be developed to study the complex interaction between inflow turbulence, support struts, propeller blades and duct structure. Successful identification of the dominant sources of noise will allow for targeted noise mitigation strategies with significant impact for stealth of military vessels and reduction of underwater noise pollution on marine life.

导管船用螺旋桨正在成为传统开放式螺旋桨的越来越多的替代方案。了解导管螺旋桨产生的流致噪声是设计过程中的一个关键考虑因素，以最大限度地减少噪声排放。本计画旨在发展新的方法，以辨识导管式螺旋桨的紊流源。将开发高保真数值方法来研究流入湍流、支撑支柱、螺旋桨叶片和管道结构之间的复杂相互作用。成功识别主要噪声源将有助于制定有针对性的噪声缓解策略，对军用船只的隐身和减少水下噪声污染对海洋生物的影响具有重大意义。