Uncertainties in Water Distribution Systems

by Derrick A. Clarke, Engr.; Jamaican Water Authority, Jamaica,
S. A. Al-Nassri, (M.ASCE), Visiting Prof.; Civ. Engrg., Univ. of Waterloo, Canada;,
Edward A. McBean, Assoc. Prof.; Civ. Engrg., Univ. of Waterloo, Waterloo, Ontario, Canada, N2L 3G1,

Serial Information: Journal of the Hydraulics Division, 1981, Vol. 107, Issue 10, Pg. 1263-1267

Document Type: Journal Paper


As a means of examining the uncertainties, the objective herein is to examine the sensitivity of the pressure difference, ΔP, in the analysis of a distribution network as a result of uncertainties in the parameters involved in the basic equation describing the flow. The First Order Analysis method developed for evaluating the pressure sensitivity is used to assess the required pressure measurement accuracy for field tests.

Subject Headings: Water supply systems | Sensitivity analysis | Uncertainty principles | Pressure distribution | Field tests | Network analysis | Parameters (statistics) | Flow distribution

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