Skip to main content
SpringerLink
Log in

Experimental investigation of the discharge coefficient of the rectangular and trapezoidal labyrinth weirs considering variable congress lengths

  • Original Article
  • Published:
Modeling Earth Systems and Environment Aims and scope Submit manuscript

Abstract

Flood discharge from dam reservoir is of utmost importance which is accomplished using weirs. The labyrinth weirs are suitable for narrow valleys as well as large floods. Labyrinth weirs have large flow passage length and consequently, high efficiency in discharging the incoming flood to the dam reservoirs. In the present study, by developing models and performing experimental tests, solutions were presented to improve the discharge coefficient and efficiency of the rectangular and trapezoidal labyrinth weirs. In other words, instead of using uniform and regular congresses in the rectangular and trapezoidal labyrinth weirs, unequal and irregular congresses were used, respectively, to increase the discharge coefficient of these types of weirs. The rectangular and trapezoidal labyrinth weirs each included 5 samples of the first type (A, D) and 5 samples of the second type (B, E) so that in the first and second types, the largest length of the congress occurred in the middle and side of the weir, respectively. Upon establishment of the mentioned models in the laboratory, different discharges were passed over the models and the flow characteristics were measured and recorded at different points, and then the discharge coefficient of the mentioned models was obtained. The solutions presented in the present study increased the discharge coefficient and consequently, the efficiency of the rectangular and trapezoidal labyrinth weirs. By using unequal and irregular congresses in the rectangular and trapezoidal labyrinth weirs instead of using equal congresses, the discharge coefficient improved on average by 40.7 and 35.3 percent, respectively.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8

Similar content being viewed by others

Availability of data and materials

The authors certify the data and materials contained in the manuscript.

References

  • Ahmad F, Hussain A, Ansari MA (2023) Development of ANN model for the prediction of discharge coefficient of an arced labyrinth side weir. Model Earth Syst Environ 9(2):1835–1842

    Article  Google Scholar 

  • Aydin MC, Ulu AE (2023) Numerical investigation of labyrinth-shaft weir. Appl Water Sci 13(4):89

    Article  Google Scholar 

  • Azamathulla HM, Haghiabi AH, Parsaie A (2016) Prediction of side weir discharge coefficient by support vector machine technique. Water Sci Technol Water Supply 16(4):1002–1016

    Article  Google Scholar 

  • Azimi AH, Hakim SS (2019) Hydraulics of flow over rectangular labyrinth weirs. Irrig Sci 37(2):183–193

    Article  Google Scholar 

  • Ben Said M, Ouamane A (2022) Performance of rectangular labyrinth weir–an experimental and numerical study. Water Supply 22(4):3628–3644

    Article  Google Scholar 

  • Ben Said M, Hafnaoui MA, Madi M (2023) Numerical analysis of the influence of approach flow conditions on the efficiency of labyrinth weir. Model Earth Syst Environ 9(1):41–51

    Article  Google Scholar 

  • Bilhan O, Emiroglu ME, Miller CJ, Ulas M (2018) The evaluation of the effect of nappe breakers on the discharge capacity of trapezoidal labyrinth weirs by ELM and SVR approaches. Flow Meas Instrum 64:71–82

    Article  Google Scholar 

  • Borghei SM, Nekooie MA, Sadeghian H, Ghazizadeh MRJ (2013) Triangular labyrinth side weirs with one and two cycles. In: Proceedings of the Institution of Civil Engineers-Water Management, vol 166, no. 1, Thomas Telford Ltd, pp 27–42

  • Carrillo JM, Matos J, Lopes R (2020) Numerical modeling of free and submerged labyrinth weir flow for a large sidewall angle. Environ Fluid Mech 20(2):357–374

    Article  Google Scholar 

  • Derakhshanifard M, Heidarnejad M, Masjedi A, Bordbar A, Egdernezhad A (2023) Experimental study of effect of creating an additional cycle along the lateral crest of the labyrinth weirs. Flow Meas Instrum 90:102306. https://doi.org/10.1016/j.flowmeasinst.2023.102306

  • Emami H, Emami S, Parsa J (2022) A Walnut optimization algorithm applied to discharge coefficient prediction on labyrinth weirs. Soft Comput 26(22):12197–12215

    Article  Google Scholar 

  • Ghaderi A, Daneshfaraz R, Abbasi S, Abraham J (2020) Numerical analysis of the hydraulic characteristics of modified labyrinth weirs. Int J Energy Water Resour 4:425–436

    Article  Google Scholar 

  • Haddadi H, Rahimpour M (2012) A discharge coefficient for a trapezoidal broad-crested side weir in subcritical flow. Flow Meas Instrum 26:63–67

  • Haghiabi AH, Nou MRG, Parsaie A (2022) The energy dissipation of flow over the labyrinth weirs. Alex Eng J 61(5):3729–3733

    Article  Google Scholar 

  • Idrees AK, Al-Ameri R (2023a) Investigating a new approach to enhance the discharge capacity of labyrinth weirs. J Hydroinf 25(2):300–317

    Article  Google Scholar 

  • Idrees AK, Al-Ameri R (2023b) Investigation of flow characteristics and energy dissipation over new shape of the trapezoidal labyrinth weirs. Flow Meas Instrum 89:102276

    Article  Google Scholar 

  • Khode BV, Tembhurkar AR, Porey PD, Ingle RN (2011) Determination of crest coefficient for flow over trapezoidal labyrinth weir. World Appl Sci J 12(3):324–329

    Google Scholar 

  • Mirnaseri M, Emadi A (2013) Hydraulic performance of combined flow rectangular labyrinth weir-gate. Middle East J Sci Res 18(9):1335–1342

    Google Scholar 

  • Monjezi R, Heidarnejad M, Masjedi A, Purmohammadi MH, Kamanbedast A (2018) Laboratory investigation of the discharge coefficient of flow in arced labyrinth weirs with triangular plans. Flow Meas Instrum 64:64–70

    Article  Google Scholar 

  • Noroozi B, Bazargan J, Safarzadeh A (2021) Introducing the T-shaped weir: a new nonlinear weir. Water Supply 21(7):3772–3789

    Article  Google Scholar 

  • Norouzi R, Daneshfaraz R, Ghaderi A (2019) Investigation of discharge coefficient of trapezoidal labyrinth weirs using artificial neural networks and support vector machines. Appl Water Sci 9(7):1–10

    Article  CAS  Google Scholar 

  • Ohadi S, Jafari-Asl J (2021) Multi-objective reliability-based optimization for design of trapezoidal labyrinth weirs. Flow Meas Instrum 77:101787

    Article  Google Scholar 

  • Parvaneh A, Borghei SM, Jalili Ghazizadeh MR (2012) Hydraulic performance of asymmetric labyrinth side weirs located on a straight channel. J Irrig Evac Eng 138(8):766–772

    Google Scholar 

  • Roushangar K, Alami MT, Shiri J, Asl MM (2018) Determining discharge coefficient of labyrinth and arced labyrinth weirs using support vector machine. Hydrol Res 49(3):924–938

    Article  Google Scholar 

  • Safarrazavi Zadeh M, Esmaeili Varaki M, Biabani R (2021) Experimental study on flow over sinusoidal and semicircular labyrinth weirs. ISH J Hydraul Eng 27(sup1):304–313

    Article  Google Scholar 

  • Selim T, Hamed AK, Elkiki M, Eltarabily MG (2023) Numerical investigation of flow characteristics and energy dissipation over piano key and trapezoidal labyrinth weirs under free-flow conditions. Model Earth Syst Environ. https://doi.org/10.1007/s40808-023-01844-w

  • Tullis BP, Young JC, Chandler MA (2007) Head-discharge relationships for submerged labyrinth weirs. J Hydraul Eng 133(3):248–254

    Article  Google Scholar 

  • Wang F, Zheng S, Ren Y, Liu W, Wu C (2022) Application of hybrid neural network in discharge coefficient prediction of triangular labyrinth weir. Flow Meas Instrum 83:102108

    Article  Google Scholar 

Download references

Funding

The authors did not receive support from any organization for the submitted work.

Author information

Authors and Affiliations

  1. Department of Civil Engineering, Bu-Ali Sina University, Hamedan, Iran

    Mohammad Hosein Masoudi, Ali Yari & Jalal Sadeghian

  2. Department of Civil Engineering, University of Zanjan, Zanjan, Iran

    Hadi Norouzi

Authors
  1. Mohammad Hosein Masoudi
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Ali Yari
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Jalal Sadeghian
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Hadi Norouzi
    View author publications

    You can also search for this author in PubMed Google Scholar

Contributions

All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by MHM, AY, JS and HN. The first draft of the manuscript was written by HN and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Jalal Sadeghian.

Ethics declarations

Conflict of interest

The authors have no financial or proprietary interests in any material discussed in this article.

Ethical approval

The authors heeded all of the Ethical Approval cases. There is no human experiment or animal experiment in the study, and the study does not address the ethical issue.

Consent to participate

The authors have studied the cases of the Authorship principles section and it is accepted.

Consent to publish

The authors certify the policy and the copyright of the publication.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Masoudi, M.H., Yari, A., Sadeghian, J. et al. Experimental investigation of the discharge coefficient of the rectangular and trapezoidal labyrinth weirs considering variable congress lengths. Model. Earth Syst. Environ. 10, 2819–2832 (2024). https://doi.org/10.1007/s40808-023-01925-w

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s40808-023-01925-w

Keywords

Search

Navigation