Experimental Investigation of the Influence of Step Height on Energy Dissipation and Flow Characteristics in Stepped Spillways

Stepped spillways have become increasingly popular due to their stability and ability to dissipate energy effectively. While previous studies have evaluated various aspects of stepped spillways, this paper specifically investigates the impact of step height on energy dissipation and flow characteris...

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Main Authors: Wazira Qadir 1, Ahang S. Ali 2, Kawa Z. Abdulrahman3
Format: Article
Language:Arabic
Published: University of Sulaimania 2023-08-01
Series:Sulaimani Journal for Engineering Sciences
Subjects:
Online Access:https://sites.google.com/a/univsul.edu.iq/sjes/issues/vol10no1/sjes-10167
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author Wazira Qadir 1
Ahang S. Ali 2
Kawa Z. Abdulrahman3
author_facet Wazira Qadir 1
Ahang S. Ali 2
Kawa Z. Abdulrahman3
author_sort Wazira Qadir 1
collection DOAJ
description Stepped spillways have become increasingly popular due to their stability and ability to dissipate energy effectively. While previous studies have evaluated various aspects of stepped spillways, this paper specifically investigates the impact of step height on energy dissipation and flow characteristics. The study aims to analyze the flow and energy dissipation rates of stepped spillways with different step heights, providing valuable insights into the design and construction of such structures. To achieve this, a series of laboratory experiments were conducted using stepped spillway models of varying step heights. The models were subjected to various flow rates within a horizontal flume of 0.3 m width, with a non-dimensional discharge (yc/h) range of 0.14 to 3.5. The outcomes indicated that the model with a larger step height exhibited greater energy dissipation, up to approximately 28%, compared to the model with a smaller step height.
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spelling doaj.art-79b1e78edb804e5b8c8e9636f443a9512023-09-19T18:16:44ZaraUniversity of SulaimaniaSulaimani Journal for Engineering Sciences2410-16992415-66552023-08-01101586210.17656/sjes.10167Experimental Investigation of the Influence of Step Height on Energy Dissipation and Flow Characteristics in Stepped SpillwaysWazira Qadir 10Ahang S. Ali 21Kawa Z. Abdulrahman32University of Sulaimani, College of Engineering, Water Resources Engineering DepartmentUniversity of Sulaimani, College of Engineering, Water Resources Engineering DepartmentUniversity of Sulaimani, College of Engineering, Water Resources Engineering DepartmentStepped spillways have become increasingly popular due to their stability and ability to dissipate energy effectively. While previous studies have evaluated various aspects of stepped spillways, this paper specifically investigates the impact of step height on energy dissipation and flow characteristics. The study aims to analyze the flow and energy dissipation rates of stepped spillways with different step heights, providing valuable insights into the design and construction of such structures. To achieve this, a series of laboratory experiments were conducted using stepped spillway models of varying step heights. The models were subjected to various flow rates within a horizontal flume of 0.3 m width, with a non-dimensional discharge (yc/h) range of 0.14 to 3.5. The outcomes indicated that the model with a larger step height exhibited greater energy dissipation, up to approximately 28%, compared to the model with a smaller step height.https://sites.google.com/a/univsul.edu.iq/sjes/issues/vol10no1/sjes-10167flat stepped spillwayenergy dissipationstep heightflow regime
spellingShingle Wazira Qadir 1
Ahang S. Ali 2
Kawa Z. Abdulrahman3
Experimental Investigation of the Influence of Step Height on Energy Dissipation and Flow Characteristics in Stepped Spillways
Sulaimani Journal for Engineering Sciences
flat stepped spillway
energy dissipation
step height
flow regime
title Experimental Investigation of the Influence of Step Height on Energy Dissipation and Flow Characteristics in Stepped Spillways
title_full Experimental Investigation of the Influence of Step Height on Energy Dissipation and Flow Characteristics in Stepped Spillways
title_fullStr Experimental Investigation of the Influence of Step Height on Energy Dissipation and Flow Characteristics in Stepped Spillways
title_full_unstemmed Experimental Investigation of the Influence of Step Height on Energy Dissipation and Flow Characteristics in Stepped Spillways
title_short Experimental Investigation of the Influence of Step Height on Energy Dissipation and Flow Characteristics in Stepped Spillways
title_sort experimental investigation of the influence of step height on energy dissipation and flow characteristics in stepped spillways
topic flat stepped spillway
energy dissipation
step height
flow regime
url https://sites.google.com/a/univsul.edu.iq/sjes/issues/vol10no1/sjes-10167
work_keys_str_mv AT waziraqadir1 experimentalinvestigationoftheinfluenceofstepheightonenergydissipationandflowcharacteristicsinsteppedspillways
AT ahangsali2 experimentalinvestigationoftheinfluenceofstepheightonenergydissipationandflowcharacteristicsinsteppedspillways
AT kawazabdulrahman3 experimentalinvestigationoftheinfluenceofstepheightonenergydissipationandflowcharacteristicsinsteppedspillways