IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v18y2025i19p5155-d1759954.html
   My bibliography  Save this article

Insights into the Effect of Confinement on Swirling Flow by PIV

Author

Listed:
  • Tao Liu

    (National Key Laboratory of Science and Technology on Aero-Engine Aero-Thermodynamics, Research Institute of Aero-Engine, Beihang University, Beijing 100191, China
    Aero Engine Corporation of China Hunan Aviation Powerplant Research Institute, Zhuzhou 412002, China)

  • Chi Zhang

    (National Key Laboratory of Science and Technology on Aero-Engine Aero-Thermodynamics, Research Institute of Aero-Engine, Beihang University, Beijing 100191, China)

  • Xin Xue

    (National Key Laboratory of Science and Technology on Aero-Engine Aero-Thermodynamics, Research Institute of Aero-Engine, Beihang University, Beijing 100191, China)

  • Shun Zheng

    (Aero Engine Corporation of China Hunan Aviation Powerplant Research Institute, Zhuzhou 412002, China)

  • Muwei Yao

    (Aero Engine Corporation of China Hunan Aviation Powerplant Research Institute, Zhuzhou 412002, China)

Abstract

Confinement with a rectangular cross-section is commonly used to simulate the role of a swirl combustor, yet its effect on swirling flows remains poorly understood. This study investigates the influence of confinement on the isothermal flow field of a counter-rotating swirler. A particle image velocimetry (PIV) system was employed to measure the swirling flow field under varying confinement ratios at an air pressure drop equivalent to 3% of atmospheric pressure. The results reveal two distinct flow patterns, delineated by a critical confinement ratio of approximately 8.92. Detailed analyses of the velocity components, contour distributions, and Reynolds shear stresses were conducted. The two flow patterns are attributed to the wall attachment effect and swirling intensity, respectively. Furthermore, the results confirm that the swirling flow field is primarily governed by the confinement ratio.

Suggested Citation

  • Tao Liu & Chi Zhang & Xin Xue & Shun Zheng & Muwei Yao, 2025. "Insights into the Effect of Confinement on Swirling Flow by PIV," Energies, MDPI, vol. 18(19), pages 1-13, September.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:19:p:5155-:d:1759954
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/18/19/5155/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/18/19/5155/
    Download Restriction: no
    ---><---

    More about this item

    Keywords

    ;
    ;
    ;
    ;

    Statistics

    Access and download statistics

    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:18:y:2025:i:19:p:5155-:d:1759954. 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.