Pressure and Flow Uncertainty in Water Systems
Publication: Journal of Water Resources Planning and Management
Volume 115, Issue 2
Abstract
In the monitoring of water distribution systems, the inaccuracy of input data contributes greatly to the inaccuracy of system state estimates calculated from them. It is important, therefore, that the system operators are given not only the values of flows and pressures in the network at any instant of time but also that they have some indication of how reliable these values are. The quantification of the inaccuracy of calculated flows and pressures caused by the input data uncertainty is called here confidence limit analysis. Several confidence limit analysis algorithms are presented. These include a Monte Carlo simulation method, an optimization method, and a sensitivity matrix technique. The performance of these algorithms is assessed in terms of their suitability for real‐time control or design stage applications. Results are presented for a realistic test network.
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Information
Published In
Journal of Water Resources Planning and Management
Volume 115 • Issue 2 • March 1989
Pages: 212 - 229
Copyright
Copyright © 1989 ASCE.
History
Published online: Mar 1, 1989
Published in print: Mar 1989
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