Article Dans Une Revue Journal of Hydraulic Engineering Année : 2012

Discussion of “Jacobian Matrix for Solving Water Distribution System Equations with the Darcy-Weisbach Head-Loss Model” by Angus Simpson and Sylvan Elhay

Résumé

The general recommendation by Simpson and Elhay (2011) that the Hazen-Williams formula be replaced by the Darcy-Weisbach is heartily applauded. Today, this fact cannot be disputed. The main purpose of this discussion is to recommend more appropriate formulas for the calculation of the Darcy friction factor, λ which are more suitable for computation of the derivatives in a Jacobian matrix, and also to clarify a few points in the calculation of the flowdependent Jacobian.

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hal-01586518 , version 1 (12-09-2017)

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Dejan Brkić. Discussion of “Jacobian Matrix for Solving Water Distribution System Equations with the Darcy-Weisbach Head-Loss Model” by Angus Simpson and Sylvan Elhay. Journal of Hydraulic Engineering, 2012, 138 (11), pp.1000-1001. ⟨10.1061/(asce)hy.1943-7900.0000529⟩. ⟨hal-01586518⟩
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