Experimental measurement of hydroacoustic noise in large scale testing facilities
Lead Research Organisation:
University of Southampton
Department Name: Faculty of Engineering & the Environment
Abstract
This project aims to show a deeper understanding of the ow physics over partially
submerged 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 novelty
To numerically simulate the acoustic properties of the Boldrewood towing tank, through
Image source and Modal methods. Enabling a picture of the tanks acoustic properties to
be built up.
To experimentally measure the acoustic properties of the Boldrewood towing tank, for
simulation validation.
To develop a methodology of removing the e ects of tank walls on underwater acoustic
measurements, using knowledge from the simulations and experimental measurements.
Thus creating free eld conditions
To Develop a methodology of isolating the bulbous bow related drag components of a
model scale ship, by measuring unsteady pressure on the surface of partially submerged
bluff bodies. In addition acoustic pressure and wave height measurements will be taken.
submerged 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 novelty
To numerically simulate the acoustic properties of the Boldrewood towing tank, through
Image source and Modal methods. Enabling a picture of the tanks acoustic properties to
be built up.
To experimentally measure the acoustic properties of the Boldrewood towing tank, for
simulation validation.
To develop a methodology of removing the e ects of tank walls on underwater acoustic
measurements, using knowledge from the simulations and experimental measurements.
Thus creating free eld conditions
To Develop a methodology of isolating the bulbous bow related drag components of a
model scale ship, by measuring unsteady pressure on the surface of partially submerged
bluff bodies. In addition acoustic pressure and wave height measurements will be taken.
Studentship Projects
| Project Reference | Relationship | Related To | Start | End | Student Name |
|---|---|---|---|---|---|
| EP/P510646/1 | 01/10/2016 | 30/09/2021 | |||
| 1941784 | Studentship | EP/P510646/1 | 27/03/2017 | 26/09/2021 | Henry Way |
| Description | A numerical model has been developed which can simulate a towing tanks response to an acoustic source. This numerical model has enabled the underwater acoustic environment of a towing tank to be characterised in detail. Using this characterisation, the effects of reverberation on physical acoustic measurements can be removed, enabling free field measurements to be undertaken in highly reverberant towing tanks. |
| Exploitation Route | The numerical model developed can be used to simulate the acoustic environment of towing tank facilities around the world. |
| Sectors | Aerospace, Defence and Marine,Environment,Transport,Other |