Pipe roughness identification of water distribution networks: The full turbulent case

Stefan Kaltenbacher, Martin Steinberger, Martin Horn

Research output: Contribution to journalArticleResearchpeer-review

Abstract

This paper proposes a technique to identify individual pipe roughness parameters in a water distribution network by means of the inversion of the steady-state hydraulic network equations. By enabling the reconstruction of these hydraulic friction parameters to be reliable, this technique improves the conventional model’s accuracy and thereby promises to enhance model-based leakage detection and localization. As it is the case in so-called fireflow tests, this methodology is founded on the premise to measure the pressure distributed at a subset of nodes in the network’s graph while assuming the nodal consumption to be known. Beside of the proposed problem formulation, which is restricted to only allow turbulent flow in each of the network’s pipes initially, developed algorithms are presented and evaluated using simulation examples.
Original languageEnglish
Number of pages16
JournalApplied Mathematical Modelling
DOIs
Publication statusE-pub ahead of print - 2019

Fingerprint

Distribution Network
Electric power distribution
Roughness
Surface roughness
Pipe
Hydraulics
Water
Turbulent flow
Friction
Turbulent Flow
Leakage
Inversion
Model-based
Subset
Methodology
Formulation
Graph in graph theory
Vertex of a graph
Simulation
Model

Keywords

  • Roughness calibration
  • Water distribution networks
  • Parameter identification
  • Colebrook–White
  • Darcy–Weisbach
  • Hydraulic friction parameters

Cite this

Pipe roughness identification of water distribution networks: The full turbulent case. / Kaltenbacher, Stefan; Steinberger, Martin; Horn, Martin.

In: Applied Mathematical Modelling, 2019.

Research output: Contribution to journalArticleResearchpeer-review

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