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Ass. Lect. Ahmed Shawky Mohamed Awaad Mohamed Soliman :: Publications:

Title:
The energy dissipation of Stepped Spillways experimentally and numerically
Authors: A. ShawkyAwad ,T. Hemdan Nasr-Allah , Y. Abdallah Mohamed , , G. Mohamed Abdel-Aal
Year: 2018
Keywords: Stepped spillway, FLOW-3D, energy dissipation
Journal: International Journal of Scientific & Engineering Research
Volume: 9
Issue: 4
Pages: 57-68
Publisher: IJSER
Local/International: International
Paper Link:
Full paper Ahmed Shawky Mohamed Awaad Mohamed Soliman_The-energy-dissipation-of-Stepped-Spillways-experimentally-and-numerically.pdf
Supplementary materials Not Available
Abstract:

A stepped spillway is a hydraulic structure, which is an integrated part of the dam, which allows the safe passage of overtopping flows. In this paper, experimental and numerical studies were carried out to investigate the effect different relative step height of spillways to get the best of dissipating the energy. Modelings of flow over spillway were carried out using a commercially available 3-D CFD model, FLOW-3D, which solves the RANS (Reynolds Averaged Navier-Stokes) equation. FLOW-3D was employed to analyze and obtain energy dissipation rate. The best geometry of the steps, through which the maximum energy dissipation can be achieved, was determined by reviewing related literature and inventing the proposed model in FLOW-3D.from resulting showed to the bets relative step height of spillways (hs/H) = 0.25.and the numerical models using FLOW-3D were found to be agreed well with the measured data for different experimental models.

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