Two-dimensional pipe leakage through a line crack in water distribution systems

In water distribution systems, water leakage from cracked water pipes is a major concern for water providers. Gen- erally, the relationship between the leakage rate and the water pressure can be modeled by a power function developed from the orifice equation. This paper presents an approximate solut...

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Bibliographic Details
Published inJournal of Zhejiang University. A. Science Vol. 14; no. 5; pp. 371 - 376
Main Authors Guo, Shuai, Zhang, Tu-qiao, Shao, Wei-yun, Zhu, David Z., Duan, Yuan-yu
Format Journal Article
LanguageEnglish
Published Hangzhou Zhejiang University Press 01.05.2013
Subjects
Approximation
Civil Engineering
Classical and Continuum Physics
Computational fluid dynamics
Cracks
Engineering
Industrial Chemistry/Chemical Engineering
Leakage
Mathematical analysis
Mathematical models
Mechanical Engineering
Pipe
Water engineering
Leakage
Soil
Pipe crack
Water distribution systems
Water pipes
TU991
Online AccessGet full text
ISSN1673-565X
1862-1775
DOI10.1631/jzus.A1200227

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Summary:In water distribution systems, water leakage from cracked water pipes is a major concern for water providers. Gen- erally, the relationship between the leakage rate and the water pressure can be modeled by a power function developed from the orifice equation. This paper presents an approximate solution for the computation of the steady-state leakage rate through a lon- gitudinal line crack of a water distribution pipe considering the surrounding soil properties. The derived solution agrees well with results of numerical simulations. Compared with the traditional models, the new solution allows assessment of all the parameters that related with leakage including the pressure head inside the pipe, hydraulic conductivity, crack size and its position, and pipe size and its depth.
Bibliography:In water distribution systems, water leakage from cracked water pipes is a major concern for water providers. Gen- erally, the relationship between the leakage rate and the water pressure can be modeled by a power function developed from the orifice equation. This paper presents an approximate solution for the computation of the steady-state leakage rate through a lon- gitudinal line crack of a water distribution pipe considering the surrounding soil properties. The derived solution agrees well with results of numerical simulations. Compared with the traditional models, the new solution allows assessment of all the parameters that related with leakage including the pressure head inside the pipe, hydraulic conductivity, crack size and its position, and pipe size and its depth.
Leakage, Pipe crack, Soil. Water distribution systems, Water pipes
33-1236/O4
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ISSN:1673-565X
1862-1775
DOI:10.1631/jzus.A1200227