Analytical solution for level pool routing equation based on various inflow hydrographs
Publish place: 4th International Conference on long-Term Behavior and Environmentally Friendly Rehabilitaion Technologies of Dams
Publish Year: 1396
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
LTBD04_076
تاریخ نمایه سازی: 25 آذر 1396
Abstract:
Reservoir routing is one ofthe most important issues in reservoir management. Estimating outflow from a dam outlet, which is the target of reservoir routing, is significantly vital since impredicted floods can bring about severe damages to infrastructures and human beings downstream of storage reservoirs. In essence, general analytical computation of storage and outflow may be impossible in practice and subsequently, application of numerical methods seems to be inevitable for reservoir routing. However, analytical relations for temporal variation of water storage in a typical reservoir for several cases of inflow hydrographs including triangular, abrupt wave, flood pulse and broad peak hydrographs are derived in this paper. . In these scenarios, an orifice was assumed for reservoir outlet. According to the literature, presented analytical solutions for the last three cases are proposed for the first time. The applicability of these analytical solutions is tested using four numerical examples while a robust numerical scheme, i.e., fourth-order Runge-Kutta, is also applied for solving these examples. The obtained results demonstrate that the recommended analytical solutions have a good agreement with the corresponding results of the utilized numerical scheme for all examples.
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Authors
Banafshe Nematollahi Sarvestani
PhD. student, Department of Civil and Environmental Engineering, School of Engineering, Shiraz University, Shiraz. Iran
Majid Niazkar
PhD. Candidate, Department of Civil and Environmental Engineering, School of Engineering, Shiraz University, Shiraz. Iran
Nasser Talebbeydokhti
Professor, School of Engineering, Department of Civil and Environmental Engineering, Head of Environmental Research and Sustainable Development Center, Shiraz University, Shiraz, Iran