Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/74158
| Title: | Transient wave scattering and its influence on transient analysis and leak detection in Urban water supply systems : theoretical analysis and numerical validation | Authors: | Duan, HF | Issue Date: | 2017 | Source: | Water (Switzerland), 2017, v. 9, no. 10, 789, p. 2 | Abstract: | This paper investigates the impacts of non-uniformities of pipe diameter (i.e., an inhomogeneous cross-sectional area along pipelines) on transient wave behavior and propagation in water supply pipelines. The multi-scale wave perturbation method is firstly used to derive analytical solutions for the amplitude evolution of transient pressure wave propagation in pipelines, considering regular and random variations of cross-sectional area, respectively. The analytical analysis is based on the one-dimensional (1D) transient wave equation for pipe flow. Both derived results show that transient waves can be attenuated and scattered significantly along the longitudinal direction of the pipeline due to the regular and random non-uniformities of pipe diameter. The obtained analytical results are then validated by extensive 1D numerical simulations under different incident wave and non-uniform pipe conditions. The comparative results indicate that the derived analytical solutions are applicable and useful to describe the wave scattering effect in complex pipeline systems. Finally, the practical implications and influence of wave scattering effects on transient flow analysis and transient-based leak detection in urban water supply systems are discussed in the paper. | Keywords: | Leak detection Non-uniformities Transient modelling Transient wave Water supply pipeline Wave scattering |
Publisher: | Molecular Diversity Preservation International (MDPI) | Journal: | Water (Switzerland) | ISSN: | 2073-4441 | DOI: | 10.3390/w9100789 | Rights: | © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
| Appears in Collections: | Journal/Magazine Article |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| water-09-00789.pdf | 4.9 MB | Adobe PDF | View/Open |
Access
View full-text via PolyU eLinks 
Page views
59
Last Week
1
1
Last month
Citations as of May 28, 2023
Downloads
24
Citations as of May 28, 2023
SCOPUSTM
Citations
5
Last Week
0
0
Last month
Citations as of May 25, 2023
WEB OF SCIENCETM
Citations
5
Last Week
0
0
Last month
Citations as of May 25, 2023
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.