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Software - Modelling and Simulation of Water Networks based on Loop Method

Arsene, Corneliu


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    <dcat:keyword>Water Distribution System</dcat:keyword>
    <dcat:keyword>Loop Method</dcat:keyword>
    <dcat:keyword>Simulator Algorithm</dcat:keyword>
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    <dct:description>&lt;p&gt;Simulator algorithm for water networks based on loop method.&lt;/p&gt; &lt;p&gt;Simulation of water networks by using the loop method and Newton-Raphson numerical method (wat_dem1.m) : the simulation starts with running the Matlab function wat_dem1.m&lt;/p&gt; &lt;p&gt;There are given the nodal consumptions, the characteristics of the pipes, head value of reference main head node, inflows/outflows.&lt;/p&gt; &lt;p&gt;sim_demo_pb.m - simulation of water networks by using the loop method and Newton-Raphson numerical method.&lt;/p&gt; &lt;p&gt;determine_flowsi_pb.m - this function uses Depth First search to calculate the following variables: the loop incidence matrix Mlp, the topological incidence matrix Anp, initial pipe flows flows_i, chord/co-tree pipes.&lt;/p&gt; &lt;p&gt;shortest_path.m - This function calculated shortest path between two nodes in the spanning tree.&lt;/p&gt; &lt;p&gt;This simulator can be applied to any water network not containing non-linear controlling hydraulic elements although some &amp;ldquo;minor modifications&amp;rdquo; would be necessary in the various Matlab files such as :&lt;/p&gt; &lt;p&gt;in sim_demo_pb.m at line 98 the number of loops l is 28, so for a different water network the number of loops would be different so it is better to change the number 28 with the letter l which stands for the number of loops. other &amp;ldquo;minor modifications&amp;rdquo; would be for example in the file determine_flowsi_pb.m at line 408, to remove nodes 65, 61, 62, 35, 34 and node 33 which are fixed head nodes but in a different water network these numbers may not mean anything. other similar &amp;ldquo;minor modifications&amp;rdquo;. This algorithm would benefit also from the addition of non-linear controlling elements based for example on the paper Alvarruiz et al. (2018) &amp;ldquo;Efficient modeling of active control valves in water distribution systems using the loop method&amp;rdquo;, J. Water Resour. Plann. Manage.&lt;/p&gt; &lt;p&gt;The project has also a DoI:&amp;nbsp;10.5281/zenodo.3357455 &amp;nbsp;(&lt;a href="https://doi.org/10.5281/zenodo.3357138"&gt;https://doi.org/10.5281/&lt;/a&gt;zenodo.3357455)&lt;/p&gt; &lt;p&gt;The license for this software is a Creative Commons Attribution 4.0 International License (CCL).&lt;/p&gt; &lt;p&gt;The simulator algorithm based on the loop method is also described in the publications from below :&lt;/p&gt; &lt;p&gt;Corneliu T.C. Arsene, &amp;quot;Uncertainty Quantification of Water Distribution System Measurement Data based on a Least Squares Loop Flows State Estimator&amp;quot;, arXiv:1701.03147,&amp;nbsp;&lt;a href="https://arxiv.org/abs/1701.03147"&gt;https://arxiv.org/abs/1701.03147&lt;/a&gt;, 2017.&lt;/p&gt; &lt;p&gt;Corneliu T.C. Arsene, Bogdan Gabrys, &amp;ldquo;Mixed simulation-state estimation in water distribution systems based on a least squares loop flows state estimator&amp;rdquo;, Applied Mathematical Modelling, 2014.&lt;/p&gt; &lt;p&gt;Corneliu T. C. Arsene, Bogdan Gabrys, David Al-Dabass: Decision support system for water distribution systems based on neural networks and graphs theory for leakage detection. Expert Syst. Appl. 39(18), 2012.&lt;/p&gt; &lt;p&gt;Arsene, C.T.C., Bargiela, A., and Al-Dabass, D. &amp;ldquo;Modelling and Simulation of Network Systems based on Loop Flows Algorithms&amp;rdquo;, Int. J. of Simulation: Systems,Science &amp;amp; Technology Vol.5, No. 1 &amp;amp; 2, pp61-72, June 2004.&lt;/p&gt; &lt;p&gt;Arsene, C.T.C., &amp;amp; Bargiela, A., &amp;ldquo;Decision support for forecasting and fault diagnosis in water distribution systems &amp;ndash; robust loop flows state estimation technique&amp;rdquo;, In Water Software Systems: theory and applications, Research Studies Press Ltd., UK, Vol. 1, 2001.&lt;/p&gt; &lt;p&gt;Arsene, C.T.C., Bargiela, A., Al-Dabass, D., &amp;ldquo;Simulation of Network Systems based on Loop Flows Algorithms&amp;rdquo;, In the proceedings of the 7th Simulation Society Conference - UKSim 2004, Oxford, U.K., 2004, ISBN 1-84233-099-3, UKSIM-2004.&lt;/p&gt;</dct:description>
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