ID:
publications-4610
Type:
article
Year:
1996
Authors:
Reddy, P. V. Niranjan and Reddy, P. V. Niranjan and Sridharan, K. and Sridharan, K. and Rao, P. Venugopala and Rao, Ponugoti Vasantha and Rao, P. V.
Title:
WLS Method for Parameter Estimation in Water Distribution Networks
Venue/Journal:
Journal of Water Resources Planning and Management
DOI:
10.1061/(asce)0733-9496(1996)122:3(157)
Research type:
Water System:
Technical Focus:
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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