Diagnosis of Hydraulic Performance of Water Supply Systems

  • Helena Alegre
  • Sérgio Teixeira Coelho
Part of the Fluid Mechanics and Its Applications book series (FMIA, volume 7)


Hydraulic simulation and demand analysis have been, for some years now, key research areas for the water supply team at the National Laboratory of Civil Engineering of Portugal. It is felt that the planning, design, operation and control of water supply and distribution system are greatly improved by the use of adequate analysis and processing tools.

Special attention has recently been paid to the assessment of the hydraulic performance of the system, which can greatly assist in establishing a useful diagnosis and in comparing different operational alternatives of upgrading or expansion solutions, in a clear and quantified basis. This paper describes the algorithms developed for the purpose, presenting a set of results for one of the case studies where the techniques have already been applied.

This type of methodologies can be envisaged as decision support tools, and are easily applicable so long as demand data and a hydraulic simulator are available. The scope of such tools can be seen as a first step towards the definition of easily implemented decision rules that may eventually integrate a Decision Support System.


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  1. 1.
    Conselho Superior de Obras Públicas e Transportes (National Council of Public Works and Transport, Portugal), New regulation on water distribution and wastewater drainage, Proceedings of Seminar, National Laboratory of Civil Engineering, Portugal, October 1991.Google Scholar
  2. 2.
    Baptista, J.M., Economical design of water supply systems. Thesis, Hydraulics Dept., National Laboratory of Civil Engineering, Portugal, May 1983.Google Scholar
  3. 3.
    Alegre, H., Coelho, S.T., Demand analysis and the quantification of levels of service in water supply systems, Proceedings, IWSA Workshop on Future Water Demand, Basel, Switzerland, February 1990.Google Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1992

Authors and Affiliations

  • Helena Alegre
    • 1
  • Sérgio Teixeira Coelho
    • 1
  1. 1.LNEC — National Laboratory of Civil EngineeringLisboa CodexPortugal

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