The University of Southampton
University of Southampton Institutional Repository

The leak noise spectrum in gas pipeline systems: Theoretical and experimental investigation

The leak noise spectrum in gas pipeline systems: Theoretical and experimental investigation
The leak noise spectrum in gas pipeline systems: Theoretical and experimental investigation
This paper is concerned with a theoretical and experimental investigation into the pressure spectrum in a pressurised fluid-filled pipe containing a leak. A general theoretical framework for predicting the leak noise spectrum is derived. A simple relationship is developed between the leak noise pressure spectrum in the pipe and the velocity spectrum at the leak orifice. Measurements of the leak noise spectrum are also presented from a pipe rig with air under pressure. The variation in noise spectrum is investigated for various leak orifice diameters and pipe pressures and compared against predictions from the theoretical model. The model is shown to predict the general shape of the pressure spectrum when the turbulence quantities are appropriately chosen. The variation in overall noise with leak orifice radius and exit velocity are also well-captured by the theoretical model.
Leak noise, Gas pipeline, Leak detection, Pressure spectrum
0022-460X
Xiao, Rui
eab545f6-79f0-4320-831c-a120586e698e
Joseph, Phillip
9c30491e-8464-4c9a-8723-2abc62bdf75d
Li, Jie
b329fcc5-5c47-41ac-8f26-e30665a73656
Xiao, Rui
eab545f6-79f0-4320-831c-a120586e698e
Joseph, Phillip
9c30491e-8464-4c9a-8723-2abc62bdf75d
Li, Jie
b329fcc5-5c47-41ac-8f26-e30665a73656

Xiao, Rui, Joseph, Phillip and Li, Jie (2020) The leak noise spectrum in gas pipeline systems: Theoretical and experimental investigation. Journal of Sound and Vibration, 488, [115646]. (doi:10.1016/j.jsv.2020.115646).

Record type: Article

Abstract

This paper is concerned with a theoretical and experimental investigation into the pressure spectrum in a pressurised fluid-filled pipe containing a leak. A general theoretical framework for predicting the leak noise spectrum is derived. A simple relationship is developed between the leak noise pressure spectrum in the pipe and the velocity spectrum at the leak orifice. Measurements of the leak noise spectrum are also presented from a pipe rig with air under pressure. The variation in noise spectrum is investigated for various leak orifice diameters and pipe pressures and compared against predictions from the theoretical model. The model is shown to predict the general shape of the pressure spectrum when the turbulence quantities are appropriately chosen. The variation in overall noise with leak orifice radius and exit velocity are also well-captured by the theoretical model.

Text
The leak Noise Spectrum in Gas pipeline systems_17june20 - Accepted Manuscript
Restricted to Repository staff only until 19 August 2021.
Request a copy
Text
Published version - Version of Record
Restricted to Repository staff only
Request a copy

More information

Accepted/In Press date: 18 August 2020
e-pub ahead of print date: 19 August 2020
Published date: 8 December 2020
Keywords: Leak noise, Gas pipeline, Leak detection, Pressure spectrum

Identifiers

Local EPrints ID: 443842
URI: http://eprints.soton.ac.uk/id/eprint/443842
ISSN: 0022-460X
PURE UUID: 55caa0b3-5774-4322-b55f-9064b217859e

Catalogue record

Date deposited: 14 Sep 2020 16:36
Last modified: 06 Oct 2020 19:27

Export record

Altmetrics

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

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×