Errata for “Pressure-Driven Demand and Leakage Simulation for Water Distribution Networks” by O. Giustolisi, D. A. Savic, and Z. Kapelan

Giustolisi, Orazio

doi:10.1061/(ASCE)0733-9429(2008)134:10(1545)

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ERRATA

Oct 1, 2008

Errata for “Pressure-Driven Demand and Leakage Simulation for Water Distribution Networks” by O. Giustolisi, D. A. Savic, and Z. Kapelan

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Author: Orazio GiustolisiAuthor Affiliations

Publication: Journal of Hydraulic Engineering

Volume 134, Issue 10

https://doi.org/10.1061/(ASCE)0733-9429(2008)134:10(1545)

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The value “0” should be replaced with “…” in the square brackets of Eqs. (6) - (9). The corrected equations appear below

q_{l} = (\frac{1}{2} or \frac{P_{i}}{2}) ∣ A_{np} ∣ [\begin{matrix} q_{1 - leak} \\ \dots \\ q_{k - leak} \\ \dots \\ q_{n p - leak} \end{matrix}]

q_{k - leak} = {\begin{matrix} β_{k} l_{k} {(P_{k})}^{α_{k}} or β_{k} l_{k} {(P_{k})}^{α_{k} - 1} & if P_{k} > 0 \\ 0 & if P_{k} ⩽ 0 \end{matrix}

D L_{n n} (i, i) = (\frac{1}{2} or \frac{P_{i}}{2}) ∣ A_{np} ∣ [\begin{matrix} \frac{d q_{1}}{d P_{1}} \\ \dots \\ \frac{d q_{k}}{d P_{k}} \\ \dots \\ \frac{d q_{n p}}{d P_{n p}} \end{matrix}]

\begin{array}{l} \frac{d q_{k}}{d P_{k}} = α_{k} β_{k} l_{k} {(P_{k})}^{α_{k} - 1} & or \frac{d q_{k}}{d P_{k}} = (α_{k} - 1) β_{k} l_{k} {(P_{k})}^{α_{k} - 2} & if P_{k} > 0 \\ \frac{d q_{k}}{d P_{k}} = 0 & if P_{k} ⩽ 0 \end{array}

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Journal of Hydraulic Engineering

Volume 134 • Issue 10 • October 2008

Pages: 1545

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Received: May 7, 2008

Accepted: May 8, 2008

Published online: Oct 1, 2008

Published in print: Oct 2008

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Orazio Giustolisi

Professor, Technical Univ. of Bari, Engineering Faculty of Taranto, viale del Turismo, 8, 74100 Taranto, Italy. E-mail: [email protected]

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Errata for “Pressure-Driven Demand and Leakage Simulation for Water Distribution Networks” by O. Giustolisi, D. A. Savic, and Z. Kapelan

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