Computational study and sensitivity analysis for quality modeling in Water Distribution Systems.

Pierre Fabrie 1 G. Gancel 2 Iraj Mortazavi 1, 3 Olivier Piller 4
1 IMB - Institut de Mathématiques de Bordeaux
2 SAFEGE
3 MC2 - Modélisation, contrôle et calcul
Inria Bordeaux - Sud-Ouest, UB - Université de Bordeaux, CNRS - Centre National de la Recherche Scientifique : UMR5251
4 CEMAGREF
Abstract : In this paper, direct water quality modelling and the associated unsteady sensitivity equations, are solved in Water Distribution Systems (WDS). A new solution algorithm is proposed, based on a time splitting method to separate and solve efficiently each phenomenon such as advection and chemical reaction. This numerical approach allows a simultaneous solution of both the direct problem and the sensitivity equations. Special attention is given to the treatment of advection, which is handled with a Total Variation Diminishing (TVD) scheme. \\ The general model presented in this study permits a global sensitivity analysis of the system and its efficiency is illustrated on two pipe networks. The importance of the sensitivity analysis is shown as part of a fitting process on a real network.
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Journal of Hydraulic Engineering, American Society of Civil Engineers, 2010, Quality Modeling of Water Distribution Systems Using Sensitivity Equations, 34 (1), pp.34-45
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Pierre Fabrie, G. Gancel, Iraj Mortazavi, Olivier Piller. Computational study and sensitivity analysis for quality modeling in Water Distribution Systems.. Journal of Hydraulic Engineering, American Society of Civil Engineers, 2010, Quality Modeling of Water Distribution Systems Using Sensitivity Equations, 34 (1), pp.34-45. 〈inria-00346976〉

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