Numerical analysis of the transient pressure damping in a single polymeric pipe with a leak

被引：61

作者：

Brunone, B. ^{[1
]}

Meniconi, S. ^{[1
]}

Capponi, C. ^{[1
]}

机构：

[1] Univ Perugia, Dipartimento Ingn Civile Ambientale, Perugia, Italy

来源：

URBAN WATER JOURNAL | 2018年 / 15卷 / 08期

关键词：

Leak detection; pressure damping; transients; transmission mains; FREQUENCY-RESPONSE METHOD; HYDRAULIC TRANSIENTS; WALL VISCOELASTICITY; BLOCKAGE DETECTION; UNSTEADY FRICTION; SYSTEM; LOCATION; TESTS; WAVES; DECAY;

D O I：

10.1080/1573062X.2018.1547772

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

In recent decades transient test-based techniques (TTBTs) have been used for fault detection in transmission mains. Within TTBTs, the direct transient analysis (DTA) allows the identification of the defects directly by analysing the pressure signal. A possible DTA procedure is based on the analysis of the damping of the pressure peaks. In this paper, it is shown that the pressure decay in a polymeric leaky pipe depends exponentially on leak size and location and the pressure at the leak. It is also shown that, for a given transient, the same damping of the pressure peaks may result from different pipe systems (e.g. with a leak of a different size in a different location).

引用

页码：760 / 768

页数：9

共 48 条

[1]

Babbitt H.E., 1920, J AWWA, V7, P589, DOI 10.1002/awwa.1920.7.issue-4

[2] Leak-induced pressure decay during transients in viscoelastic pipes. Preliminary results. [J].