IDEAS home Printed from https://ideas.repec.org/h/spr/sprchp/978-3-540-75999-7_56.html

Effect of Straightening Vane on Hydraulic Performances of Sprinkler by CFD Analysis

In: Computational Mechanics

Author

Listed:
  • H. J. Yan

    (China Agricultural University, College of Water Conversancy and Civil Engineering)

  • Y. J. Ou

    (China Agricultural University, College of Water Conversancy and Civil Engineering)

  • F. F. Yu

    (China Agricultural University, College of Water Conversancy and Civil Engineering)

  • F. J. Wang

    (China Agricultural University, College of Water Conversancy and Civil Engineering)

Abstract

A typical internal flow passage of sprinkler is composed of bearing nipple, bend, tube and nozzle. For a medium or large size sprinkler, a unique straightening vane is often installed inside tube in attempts to minimize internal turbulence and to increase radius of sprinkler. To investigate the effect of different structural parameters and installed positions of straightening vane on the hydraulic performances of sprinkler becomes more and more important. The computational fluid dynamics (CFD) approach can be successfully used to simulate the flow characteristics in internal flow passage. In this study, several turbulence models and different mesh types were utilized for different structural characteristics of straightening vanes in search of optimal CFD methods for sprinkler. The distributions of velocity, pressure and turbulence kinetic energy for different straightening vanes at inlet pressures ranging 250-500kPa were obtained. The calculated results revealed that turbulence kinetic energy is reduced significantly at nozzle outlet for sprinkler with straightening vane and the flow rate increases by 8.5% compared with sprinkler without straightening vane. In addition, the relationship between inlet pressure and flow rate for different nozzles were also predicted. Comparisons of CFD predictions with experimental data were presented for a typical PY140 impact sprinkler. The results of the simulated and experimental data were in good agreement. Finally optimized geometrical parameters of straightening vanes were brought forward.

Suggested Citation

  • H. J. Yan & Y. J. Ou & F. F. Yu & F. J. Wang, 2007. "Effect of Straightening Vane on Hydraulic Performances of Sprinkler by CFD Analysis," Springer Books, in: Computational Mechanics, pages 256-256, Springer.
    • Handle: RePEc:spr:sprchp:978-3-540-75999-7_56
    DOI: 10.1007/978-3-540-75999-7_56
    as

    Download full text from publisher

    To our knowledge, this item is not available for download. To find whether it is available, there are three options:
    1. Check below whether another version of this item is available online.
    2. Check on the provider's web page whether it is in fact available.
    3. Perform a
    for a similarly titled item that would be available.

    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:spr:sprchp:978-3-540-75999-7_56. 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: 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.