Projects per year
Abstract
Several hydraulic modelling approaches have been proposed previously to simulate pressure deficient operating conditions in water distribution networks more realistically. EPANET-PDX is an extension of EPANET 2 that has an embedded logistic nodal head-flow function. The EPANET-PDX algorithm was investigated to address the weaknesses uncovered under conditions of extremely low pressure. It was observed that, under certain circumstances, the norm of the system of equations increased from one iteration to the next. A criterion that detects false convergence was included. In general, in the examples considered, the formulation proposed had more consistent computational properties, required fewer iterations of the global gradient algorithm, and application of the line minimization procedure was frequent. The formulation proposed is significantly faster in conditions of extremely low pressure. The hydraulic and water quality modelling functionality of EPANET 2 was preserved. For the operating conditions with satisfactory pressure, where direct comparisons with EPANET 2 were possible, EPANET 2 was consistently faster.
Original language | English |
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Number of pages | 17 |
Journal | Water Resources Management |
Early online date | 29 Sept 2016 |
DOIs | |
Publication status | E-pub ahead of print - 29 Sept 2016 |
Keywords
- Nodal head-flow function
- water distribution network
- line minimization
- evolutionary optimization
- global gradient algorithm
- pressure-driven analysis
Fingerprint
Dive into the research topics of 'Investigation into the pressure-driven extension of the EPANET hydraulic simulation model for water distribution systems'. Together they form a unique fingerprint.Projects
- 1 Finished
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PF-MOEA: Penalty-free feasibility boundary-convergent multi-objective evolutionary approach for water distribution
Tanyimboh, T. (Principal Investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/10/09 → 31/03/13
Project: Research
Research output
- 15 Citations
- 8 Article
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Multiobjective evolutionary optimization of water distribution systems: exploiting diversity with infeasible solutions
Tanyimboh, T. T. & Seyoum, A. G., 1 Dec 2016, In: Journal of Environmental Management. 183, Part 1, p. 133-141 9 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile19 Citations (Scopus)146 Downloads (Pure) -
Penalty-free multi-objective evolutionary approach to optimization of anytown water distribution network
Siew, C., Tanyimboh, T. T. & Seyoum, A. G., 1 Sept 2016, In: Water Resources Management. 30, 11, p. 3671–3688 18 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile33 Citations (Scopus)249 Downloads (Pure) -
Comparison of surrogate measures for the reliability and redundancy of water distribution systems
Tanyimboh, T. T., Siew, C., Saleh, S. H. A. & Czajkowska, A., 31 May 2016, (E-pub ahead of print) In: Water Resources Management. 30, 10, p. 3535–3552 18 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile25 Citations (Scopus)86 Downloads (Pure)