This article describes an algorithm for the pressure driven analysis of water distribution networks. Such an approach involves two main issues: the determination of a sound discharge-pressure relationship and robustness of the numerical algorithm used to solve the system of equations governing network hydraulics. To this end, the well-known Wagner relationship between nodal flow and pressure is employed and an initial solution of the system equations is assumed. These assumptions eschew complex discharge-pressure relationships, avoiding numerical problems in regions where the Wagner function presents a discontinuity and is not differentiable, while the adoption of a proper initial search point allows for good convergence towards the solution

A pressure-driven approach for water distribution system modelling

Giustolisi, O.;Doglioni, A.
2007

Abstract

This article describes an algorithm for the pressure driven analysis of water distribution networks. Such an approach involves two main issues: the determination of a sound discharge-pressure relationship and robustness of the numerical algorithm used to solve the system of equations governing network hydraulics. To this end, the well-known Wagner relationship between nodal flow and pressure is employed and an initial solution of the system equations is assumed. These assumptions eschew complex discharge-pressure relationships, avoiding numerical problems in regions where the Wagner function presents a discontinuity and is not differentiable, while the adoption of a proper initial search point allows for good convergence towards the solution
Computer and Control in Water Industry, CCWI 2007
978-0-415-45415-5
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11589/14136
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