On the mechanisms of leak noise generation in water-filled pipes
On the mechanisms of leak noise generation in water-filled pipes
This thesis investigates the generation and characterisation of leak noise in water pipes, with the aim of understanding its source and behaviour. Knowledge of leak noise generation and characterisation could help in making informed decisions about detecting leaks and prioritising repair operations, which save time and money. Numerical simulation of leaks on water pipes were carried out in 3-D, using Ansys-Fluent CFD software package and turbulent kinetic energy peaks, found around the edges of the leaks, were demonstrated to be largely responsible for leak noise in the pipes. Flow data obtained from the leak holes of different shapes were incorporated into a derived semi-analytical model to predict leak noise spectra in the pipes. The spectra were then characterised based on different shapes, leak sizes, line pressures, source strengths and leak mean flow velocities, to reveal distinct relationships between the leaks and their spectra.
University of Southampton
Adesina, Olusegun Ayodeji
db9bac9a-d52d-416b-992e-68428846fcce
16 October 2024
Adesina, Olusegun Ayodeji
db9bac9a-d52d-416b-992e-68428846fcce
Muggleton, Jen
2298700d-8ec7-4241-828a-1a1c5c36ecb5
Joseph, Phillip
9c30491e-8464-4c9a-8723-2abc62bdf75d
Adesina, Olusegun Ayodeji
(2024)
On the mechanisms of leak noise generation in water-filled pipes.
University of Southampton, Doctoral Thesis, 157pp.
Record type:
Thesis
(Doctoral)
Abstract
This thesis investigates the generation and characterisation of leak noise in water pipes, with the aim of understanding its source and behaviour. Knowledge of leak noise generation and characterisation could help in making informed decisions about detecting leaks and prioritising repair operations, which save time and money. Numerical simulation of leaks on water pipes were carried out in 3-D, using Ansys-Fluent CFD software package and turbulent kinetic energy peaks, found around the edges of the leaks, were demonstrated to be largely responsible for leak noise in the pipes. Flow data obtained from the leak holes of different shapes were incorporated into a derived semi-analytical model to predict leak noise spectra in the pipes. The spectra were then characterised based on different shapes, leak sizes, line pressures, source strengths and leak mean flow velocities, to reveal distinct relationships between the leaks and their spectra.
Text
University of Southampton Research Repository1
- Version of Record
Text
Final-thesis-submission-Examination-Mr-Olusegun-Adesina
Restricted to Repository staff only
More information
Published date: 16 October 2024
Identifiers
Local EPrints ID: 494811
URI: http://eprints.soton.ac.uk/id/eprint/494811
PURE UUID: 7141b657-f5f6-488e-bdf1-46f62b91aa3a
Catalogue record
Date deposited: 16 Oct 2024 16:30
Last modified: 16 Oct 2024 16:42
Export record
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics