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Modelling Energy Dissipation Over Stepped-gabion Weirs by Artificial Intelligence

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  • Rahman Khatibi
  • Farzin Salmasi
  • Mohammad Ghorbani
  • Hakimeh Asadi

Abstract

The hydraulics of energy dissipation over stepped-gabion weirs is investigated by carrying out a series of laboratory experiments, building models to explain the experimental data, and testing their robustness by using the data reported by other researchers. The experiments comprise: six different stepped-gabion weirs tested in a horizontal laboratory flume, a wide range of discharge values, two weir slopes (V:H): 1:1 and 1:2, and gabion filling material gravel size (porosity equal to 38 %, 40 % and 42 %). These experimental setups were selected to ensure the development of both the nappe and skimming flow regimes within the measured dataset. The models developed for computing energy dissipation over stepped-gabion weirs comprise: multiple regression equations based on dimensional analysis theory, Artificial Neural Network (ANN) and Gene Expression Programming (GEP). The analysis shows that the measured data capture both flow regimes and the transition in between them and above all, and by using all of the data, it may be possible to identify the range of each regime. Energy dissipation modelled by the ANN formulation is successful and may be recommended for reliable estimates but those by GEP and regression analysis can still serve for rough-and-ready estimates in engineering applications. Copyright Springer Science+Business Media Dordrecht 2014

Suggested Citation

  • Rahman Khatibi & Farzin Salmasi & Mohammad Ghorbani & Hakimeh Asadi, 2014. "Modelling Energy Dissipation Over Stepped-gabion Weirs by Artificial Intelligence," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 28(7), pages 1807-1821, May.
    • Handle: RePEc:spr:waterr:v:28:y:2014:i:7:p:1807-1821
    DOI: 10.1007/s11269-014-0545-y
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    References listed on IDEAS

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    1. Milica Markovic, 2012. "Multi criteria Analysis of Hydraulic Structures for River Training Works," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 26(13), pages 3893-3906, October.
    2. Ahmed Said, 2006. "The Implementation of a Bayesian Network for Watershed Management Decisions," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 20(4), pages 591-605, August.
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    Cited by:

    1. Mehrdad Ghorbani Mooselu & Mohammad Reza Nikoo & Nooshin Bakhtiari Rayani & Azizallah Izady, 2019. "Fuzzy Multi-Objective Simulation-Optimization of Stepped Spillways Considering Flood Uncertainty," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 33(7), pages 2261-2275, May.
    2. Mostafa Rahmanshahi & Jafar Jafari-Asl & Mahmood Shafai Bejestan & Seyedali Mirjalili, 2023. "A Hybrid Model for Predicting the Energy Dissipation on the Block Ramp Hydraulic Structures," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 37(8), pages 3187-3209, June.
    3. Kiyoumars Roushangar & Mahdi Majedi Asl & Saman Shahnazi, 2021. "Hydraulic Performance of PK Weirs Based on Experimental Study and Kernel-based Modeling," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 35(11), pages 3571-3592, September.

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