Experimental measurement of hydroacoustic noise in large scale testing facilities

大型测试设施中水声噪声的实验测量

• 批准号: 1941784
• 金额: --
• 依托单位: University of Southampton
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2017
• 资助国家: 英国
• 起止时间: 2017 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1941784
• 关键词: Experimental; measurement; hydroacoustic; noise; large

This project aims to show a deeper understanding of the ow physics over partiallysubmerged bluff bodies, such as the bulbous bow of a ship. To achieve this aim, a set of objectives are defined:Undertake a literature review of underwater acoustic measurements and the hydrodynamicows over a bulbous bow, to identify noveltyTo numerically simulate the acoustic properties of the Boldrewood towing tank, throughImage source and Modal methods. Enabling a picture of the tanks acoustic properties tobe built up.To experimentally measure the acoustic properties of the Boldrewood towing tank, forsimulation validation.To develop a methodology of removing the e ects of tank walls on underwater acousticmeasurements, using knowledge from the simulations and experimental measurements.Thus creating free eld conditionsTo Develop a methodology of isolating the bulbous bow related drag components of amodel scale ship, by measuring unsteady pressure on the surface of partially submergedbluff bodies. In addition acoustic pressure and wave height measurements will be taken.

这个项目的目的是展示对部分淹没的海崖体（如船的球鼻状船首）的水流物理学的更深入的理解。为了实现这一目标，我们确定了一系列目标：对水下声学测量和球首水动力流的文献进行综述，以识别新颖性通过图像源和模态方法对Boldrewood拖曳水池的声学特性进行数值模拟。建立了一幅水舱声学特性的图像。实验测量了Boldrewood拖曳水舱的声学特性，以进行仿真验证。利用仿真和实验测量的知识，开发了一种消除水舱壁对水下声学测量的影响的方法。从而创造了自由场条件。开发了一种隔离模型船球首相关阻力分量的方法。通过测量部分浸没的非流线体表面的非定常压力。此外，还将进行声压和波高测量。

项目成果

Acoustic Characterisation of Water Tanks using an Adapted Image Source Model

使用自适应图像源模型对水箱进行声学表征

• 发表时间: 2019
• 作者: Way Henry