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.. - STAMPA. - (2007), pp. 143-149. (Intervento presentato al convegno Computer and Control in Water Industry, CCWI 2007 tenutosi a Leicester, UK nel September 3-5 , 2007).
A pressure-driven approach for water distribution system modelling
Giustolisi, O.;Doglioni, A.
2007-01-01
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 solutionI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
