Calibration of a model of an operational water distribution system containing pipes of different age

Authors:
T. Koppel;A. Vassiljev
Affiliations:
Department of Mechanics, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia;Department of Mechanics, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia
Venue:
Advances in Engineering Software
Year:
2009

Citing 2
Cited 2

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Use of modelling error dynamics for the calibration of water distribution systems

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Estimation of real-time water fluxes in water distribution system on the basis of pressure measurements

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Abstract

The aim of the paper is to demonstrate that the Levenberg-Marquardt algorithm can give successful results when operational water distribution systems are calibrated with the proper selection of parameter increment for the calculation of partial derivatives. The functional dependence of pipe roughness on age, which describes linear and nonlinear dependences, is proposed for the calibration of a model of a water distribution system containing pipes of different age. It is also shown that the visualization of response surface on a coarse grid is very useful for the analysis of the results.