WLS Method for Parameter Estimation in Water Distribution Networks
Publication: Journal of Water Resources Planning and Management
Volume 122, Issue 3
Abstract
The weighted-least-squares method based on the Gauss-Newton minimization technique is used for parameter estimation in water distribution networks. The parameters considered are: element resistances (single and/or group resistances, Hazen-Williams coefficients, pump specifications) and consumptions (for single or multiple loading conditions). The measurements considered are: nodal pressure heads, pipe flows, head loss in pipes, and consumptions/inflows. An important feature of the study is a detailed consideration of the influence of different choice of weights on parameter estimation, for error-free data, noisy data, and noisy data which include bad data. The method is applied to three different networks including a real-life problem.
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Information & Authors
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Published In
Journal of Water Resources Planning and Management
Volume 122 • Issue 3 • May 1996
Pages: 157 - 164
Copyright
Copyright © 1996 American Society of Civil Engineers.
History
Published online: May 1, 1996
Published in print: May 1996
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