IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v12y2019i23p4469-d290305.html
   My bibliography  Save this article

Energy Dissipation in Stepped Spillways with Different Horizontal Face Angles

Author

Listed:
  • Yongqin Peng

    (Southwest Research Institute for Water Transport Engineering, Chongqing Jiaotong University, Chongqing 400074, China)

  • Xujin Zhang

    (Southwest Research Institute for Water Transport Engineering, Chongqing Jiaotong University, Chongqing 400074, China)

  • Hao Yuan

    (Southwest Research Institute for Water Transport Engineering, Chongqing Jiaotong University, Chongqing 400074, China)

  • Xia Li

    (Southwest Research Institute for Water Transport Engineering, Chongqing Jiaotong University, Chongqing 400074, China)

  • Chunhang Xie

    (Southwest Research Institute for Water Transport Engineering, Chongqing Jiaotong University, Chongqing 400074, China)

  • Shuqing Yang

    (Southwest Research Institute for Water Transport Engineering, Chongqing Jiaotong University, Chongqing 400074, China)

  • Zhaoliang Bai

    (State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China)

Abstract

Energy dissipation is one of the most important factors in choosing stepped spillways. However, very few studies have investigated energy dissipation with different horizontal face angles. In this paper, the realizable k - ε turbulent model was used to study the flow field, energy dissipation rates and turbulent kinetic energy and its dissipation rate for different stepped spillways with five horizontal face angles in the skimming flow regions. Results showed that the field and direction of the flow were changed by the horizontal face angles of the stepped spillway, which produced some unique characteristics and thus caused better energy dissipation. The fluctuation of free water surface will be larger with increasing horizontal face angles and the energy dissipation rate decreases with an increasing unit discharge and increases for the enlargement of the horizontal face angles. This conclusion could provide a reference for the relevant research of V shaped stepped spillways.

Suggested Citation

  • Yongqin Peng & Xujin Zhang & Hao Yuan & Xia Li & Chunhang Xie & Shuqing Yang & Zhaoliang Bai, 2019. "Energy Dissipation in Stepped Spillways with Different Horizontal Face Angles," Energies, MDPI, vol. 12(23), pages 1-11, November.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:23:p:4469-:d:290305
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/12/23/4469/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/12/23/4469/
    Download Restriction: no
    ---><---

    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:gam:jeners:v:12:y:2019:i:23:p:4469-:d:290305. 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.

    We have no bibliographic references for this item. You can help adding them by using 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: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.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.