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 is also well-captured by the theoretical model.
Gas pipeline, Leak detection, Leak noise, Pressure spectrum
Xiao, Rui
eab545f6-79f0-4320-831c-a120586e698e
Joseph, Phillip
9c30491e-8464-4c9a-8723-2abc62bdf75d
Li, Jie
b329fcc5-5c47-41ac-8f26-e30665a73656
8 December 2020
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).
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 is also well-captured by the theoretical model.
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The leak Noise Spectrum in Gas pipeline systems_17june20
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Accepted/In Press date: 18 August 2020
e-pub ahead of print date: 19 August 2020
Published date: 8 December 2020
Additional Information:
Funding Information:
This work was supported by The National Key Research and Development Program of China (grant no. 2016YFC0802400 ).
Publisher Copyright:
© 2020
Keywords:
Gas pipeline, Leak detection, Leak noise, 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
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Date deposited: 14 Sep 2020 16:36
Last modified: 17 Mar 2024 05:53
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Author:
Rui Xiao
Author:
Jie Li
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