IDEAS home Printed from https://ideas.repec.org/a/spr/waterr/v37y2023i9d10.1007_s11269-023-03523-y.html
   My bibliography  Save this article

Numerical Investigation of Modified Semi-Cylindrical Weirs

Author

Listed:
  • Ehsan Afaridegan

    (Yazd University)

  • Nosratollah Amanian

    (Yazd University)

  • AmirHamzeh Haghiabi

    (Lorestan University)

  • Abbas Parsaie

    (Shahid Chamran University of Ahvaz)

  • Alireza Goodarzi-Mohammadi

    (Petroleum University of Technology)

Abstract

In this study, the flow characteristics over modified semi-cylindrical weirs (MSCM) were investigated using computational fluid dynamics (CFD) simulations. The simulations included the analysis of flow velocity and pressure distribution, turbulence intensity, and streamline patterns. The numerical results were compared to laboratory observations, and a good agreement was observed. Different turbulence models, including renormalized group (RNG) k-ε, standard k-ε, k-ω two-equations, and large eddy simulation (LES), were evaluated, and all showed suitable performance in simulating the flow field and hydraulic characteristics. However, the standard k-ε model outperformed the other models. The analysis of streamline patterns from upstream to downstream of the weirs showed that the curve of the crest provided an opportunity for the flow to harmonize with the surface of the crest. The downstream ramp guided the streamlines, preventing collision with the downstream slab surface and vorticity formation. Additionally, the results indicated that adding the downstream ramp significantly reduced the turbulence intensity of the flow at the toe of the weirs. The analysis of pressure distribution showed that the flow departed from hydrostatic state when reaching the weir, and the maximum deviation occurred at the crest vertex.

Suggested Citation

  • Ehsan Afaridegan & Nosratollah Amanian & AmirHamzeh Haghiabi & Abbas Parsaie & Alireza Goodarzi-Mohammadi, 2023. "Numerical Investigation of Modified Semi-Cylindrical Weirs," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 37(9), pages 3715-3728, July.
    • Handle: RePEc:spr:waterr:v:37:y:2023:i:9:d:10.1007_s11269-023-03523-y
    DOI: 10.1007/s11269-023-03523-y
    as

    Download full text from publisher

    File URL: http://link.springer.com/10.1007/s11269-023-03523-y
    File Function: Abstract
    Download Restriction: Access to the full text of the articles in this series is restricted.
    File URL: https://libkey.io/10.1007/s11269-023-03523-y?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Veysi Kartal & M. Emin Emiroglu, 2023. "Hydraulic Performance of Sharp-Crested Side Slit Weirs," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 37(3), pages 1297-1319, February.
    2. Abdol Mahdi Behroozi & Mohammad Vaghefi, 2022. "Experimental and Numerical Study of the Effect of Zigzag Crests with Various Geometries on the Performance of A-type Piano Key Weirs," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 36(12), pages 4517-4533, September.
    3. Amiya Abhash & K. K. Pandey, 2021. "Experimental and Numerical Study of Discharge Capacity and Sediment Profile Upstream of Piano Key Weirs with Different Plan Geometries," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 35(5), pages 1529-1546, March.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Hossain Zare & Mohammad Vaghefi & Amin Mahmoudi & Abdol Mahdi Behroozi, 2023. "Experimental Exploration of Flow Hydraulics and Discharge Coefficient for an Inclined Circular Labyrinth Weir," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 37(11), pages 4521-4536, September.
    2. Veysi Kartal & M. Emin Emiroglu, 2023. "Hydraulic Performance of Sharp-Crested Side Slit Weirs," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 37(3), pages 1297-1319, February.
    3. Wenlong Zhao & Jian Zhang & Wei He & Lin shi & Xuyun Chen, 2022. "Effects of Diversion Wall on the Hydrodynamics and Withdrawal Sediment of A Lateral Intake," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 36(3), pages 1057-1073, February.
    4. 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.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:spr:waterr:v:37:y:2023:i:9:d:10.1007_s11269-023-03523-y. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.springer.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.