Abstract
Canal section design with minimum cost, which can be considered as an objective function, involves minimization of total costs per unit length of the canal, including direct costs of per cubic meter earthworks and per meter canal lining and indirect costs of water losses through canal seepage and evaporation. Since the costs (both direct and indirect) are associated with the canal geometry and dimensions, it is possible to lower them by optimization of the mentioned objective function. For this purpose, some constraints were subjected and considered to solve the problem. Flow discharge, as the main constraint, was considered in addition to the minimum permissible velocity and Froude’s number, as subsidiary constraints. MATLAB programming software was used to demonstrate and run the optimization algorithm. The results finally were illustrated in forms of dimensionless graphs, which simplify the optimum design of canal dimensions with minimum cost per meter length. Comparing the results with other similar studies, however show the importance and role of earthworks and lining costs, as well as including the subsidiary constraints in the optimization process.
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Rezapour Tabari, M.M., Tavakoli, S. & Mazak Mari, M. Optimal Design of Concrete Canal Section for Minimizing Costs of Water Loss, Lining and Earthworks. Water Resour Manage 28, 3019–3034 (2014). https://doi.org/10.1007/s11269-014-0652-9
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DOI: https://doi.org/10.1007/s11269-014-0652-9