Experimental Survey of Energy Dissipation in Nappe Flow Regime in Stepped Spillway Equipped with Inclined Steps and Sill

International Journal of Research and Engineering

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Title Experimental Survey of Energy Dissipation in Nappe Flow Regime in Stepped Spillway Equipped with Inclined Steps and Sill
Creator Ketabdar, Milad
Moghaddam, Amir Kamyab
Ahmadian, Sepideh Amir
Hoseini, Pedram
Pishdadakhgari, Mohammadali
Description Stepped spillway increases the hydraulic resistance against flow by using of step-made spillway floor and when the flow of water passing on steps, a significant part of energy dissipates and also reduces the risk of cavitation. In this experimental research, in order to increase the energy dissipation of stepped spillway, Steps has a reverse gradient and in other part of this tests in addition to create a reverse gradient in the steps at the same time the sill is also installed on the edge of the steps. Height, thickness of the sills is considered variable. The results show that in both Nappe Flow Regime and Skimming Flow Regime Change of gradient, sills height, thickness are effective to increase the energy loss but the effect of these parameters on the Nappe Flow Regime is much greater than Skimming Flow Regime. By analyzing the results of the experiments and compared with results from other studies, the research showed that the method used in this study has a better energy loss than other methods used in prior researches.
Publisher IJRE Publisher
Date 2017-06-08
Type info:eu-repo/semantics/article
Peer-reviewed Article
Format application/pdf
Identifier https://digital.ijre.org/index.php/int_j_res_eng/article/view/283
Source International Journal of Research and Engineering; Vol 4 No 5 (2017): May 2017 Edition; 161-165
Language eng
Relation https://digital.ijre.org/index.php/int_j_res_eng/article/view/283/262
Rights Copyright (c) 2017 Milad Ketabdar, Amir Kamyab Moghaddam, Sepideh Amir Ahmadian, Pedram Hoseini, Mohammadali Pishdadakhgari

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