IDEAS home Printed from https://ideas.repec.org/a/hin/jnlmpe/5595918.html
   My bibliography  Save this article

Extreme-Point Symmetric Mode Decomposition to Define the Turbulence Characteristics of a Flume Flow

Author

Listed:
  • Zhi-Peng Shi
  • Ting-Ting He
  • Gen-Guang Zhang

Abstract

Turbulence is a key feature of solid-liquid two-phase flows, and the pulsating velocity is the basis for calculating turbulence characteristics. In general, the method of mathematical expectation is used to calculate pulsating velocity. However, this method does not reflect the fluctuating state of the instantaneous velocity. Therefore, the method of extreme-point symmetric mode decomposition (ESMD) is adopted to calculate pulsating velocity and turbulence characteristics. The ESMD involves two stages, namely, modal decomposition and time-frequency analysis. The optimal adaptive global mean (AGM), which is the result of modal decomposition, can accurately reflect the fluctuation state of the instantaneous velocity, and the theory of the pulsating velocity defined on this basis is reasonable. Moreover, the flow pattern and turbulence behaviour of a two-phase flow can be predicted using the calculated turbulence characteristics. The method is used to analyse the pulsating velocity of the flume, and its rationality in theoretically predicting the turbulence behaviour of flume flows is demonstrated.

Suggested Citation

  • Zhi-Peng Shi & Ting-Ting He & Gen-Guang Zhang, 2021. "Extreme-Point Symmetric Mode Decomposition to Define the Turbulence Characteristics of a Flume Flow," Mathematical Problems in Engineering, Hindawi, vol. 2021, pages 1-9, July.
    • Handle: RePEc:hin:jnlmpe:5595918
    DOI: 10.1155/2021/5595918
    as

    Download full text from publisher

    File URL: http://downloads.hindawi.com/journals/MPE/2021/5595918.pdf
    Download Restriction: no
    File URL: http://downloads.hindawi.com/journals/MPE/2021/5595918.xml
    Download Restriction: no
    File URL: https://libkey.io/10.1155/2021/5595918?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
    ---><---

    More about this item

    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:hin:jnlmpe:5595918. 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: Mohamed Abdelhakeem (email available below). General contact details of provider: https://www.hindawi.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.