Verification of sampling design for water distribution networks calibration

Behzadian, Kourosh ORCID:, Jalilsani, Fatemeh, Ardeshir, Abdollah and Sabour, Farhad (2006) Verification of sampling design for water distribution networks calibration. In: Water Distribution Systems Analysis Symposium 2006, 27-30 Aug 2006, Cincinnati, Ohio, United States.

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This paper presents the verification of sampling design problem for collecting data from a water distribution network. The aim is to compare the theory verification of model with the real one through developing a calibration procedure based on an optimization algorithm. At first, the multi-objective optimization model is assumed to be solved and the locations of measurement points are determined with different level of accuracy. Three approaches are considered for parameter uncertainty estimation in sampling design. With assuming the measurement points (i.e. the pressure heads) at each node, calibration procedure is made in order to adjust the best parameter (i.e. the pipe friction coefficients). Calibration is performed based on Genetic algorithm (GA) optimization approach. Determined Locations in the solutions of each scenario of sampling design are assumed to be the measurement points in each calibration procedure. Thus, the calibration results are compared in three scenarios with the same number of measurement. Comparison of the results is carried out based on the sum of squared deviations between all pressures calculated from the calibrated model and actual pressures with the real parameter. For the sets of the same measurement numbers, the best fitness solutions are selected based on the sum of squared error (SSE) criteria. The consistency of results for every specific number of measurements shows the robustness of methodology and its safe application to different cases.

Item Type: Conference or Workshop Item (Paper)
Identifier: doi10.1061/40941(247)65
Identifier: doi10.1061/40941(247)65
Keywords: Mathematical models; Problem solving; Sampling; Verification; Field measurements; Sampling design; Water distribution systems
Subjects: Computing
Construction and engineering
Depositing User: Kourosh Behzadian
Date Deposited: 11 Oct 2023 12:47
Last Modified: 11 Oct 2023 12:47


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