Detection of extended blockages in pressurised pipelines using hydraulic transients with a layer-peeling method

Zeng, Wei, Gong, Jinzhe, Lambert, Martin, Simpson, Angus, Cazzolato, Benjamin and Zecchin, Aaron 2019, Detection of extended blockages in pressurised pipelines using hydraulic transients with a layer-peeling method, in IAHR 2018 : Proceedings of the 29th IAHR Symposium on Hydraulic Machinery and Systems, IOP Publishing, Bristol, Eng., pp. 1-7, doi: 10.1088/1755-1315/240/5/052019.

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Title Detection of extended blockages in pressurised pipelines using hydraulic transients with a layer-peeling method
Author(s) Zeng, Wei
Gong, JinzheORCID iD for Gong, Jinzhe orcid.org/0000-0002-6344-5993
Lambert, Martin
Simpson, Angus
Cazzolato, Benjamin
Zecchin, Aaron
Conference name International Association for Hydro-Environment Engineering and Research. Symposium (29th : 2018 : Kyoto, Japan)
Conference location Kyoto, Japan
Conference dates 2018/09/17 - 2018/09/21
Title of proceedings IAHR 2018 : Proceedings of the 29th IAHR Symposium on Hydraulic Machinery and Systems
Editor(s) [Unknown]
Publication date 2019
Series International Association for Hydro-Environment Engineering and Research Symposium
Start page 1
End page 7
Total pages 7
Publisher IOP Publishing
Place of publication Bristol, Eng.
Keyword(s) Water distribution systems (WDSs)
Hydraulic transient waves
Pressurised pipelines
Blockages
Summary Water distribution systems (WDSs) are one of society's most important infrastructure assets. They consist of buried pipes that are often old and their condition is extremely difficult and expensive to determine. This research proposes a non-invasive layer-peeling method using hydraulic transient waves to detect extended blockages in pressurised pipelines. In the numerical study, hydraulic transient pressure waves are injected into a pipeline at a dead-end. Wave reflections caused by multiple extended blockages (uniform and non-uniform) are simulated using the method of characteristics (MOC). The impulse response function (IRF) of the pipeline is then obtained using the simulated pressure response at the dead-end. The original layer-peeling method previously applied to tubular music instruments is further developed by considering the differences between the instruments and pressurised pipelines (boundary conditions, fluid properties). Using the IRF and the modified layer-peeling method, the internal pipe diameter values are estimated section by section from the dead-end to the upstream end of the pipeline. The blocked pipe sections are then accurately identified from the reconstructed pipe wall thickness distribution profile.
ISSN 1755-1307
1755-1315
Language eng
DOI 10.1088/1755-1315/240/5/052019
Indigenous content off
HERDC Research category E1 Full written paper - refereed
Copyright notice ©2019, The Author(s)
Persistent URL http://hdl.handle.net/10536/DRO/DU:30123818

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