IDEAS home Printed from https://ideas.repec.org/a/eee/matcom/v65y2004i4p447-468.html
   My bibliography  Save this article

Effect of vortex profile on sound generation in a non-uniform flow

Author

Listed:
  • Povitsky, Alex
  • Zheng, Tinghui
  • Vatistas, Georgios H.

Abstract

Propagation of acoustic waves caused by deformation of self-similar vortices in the non-uniform flow is studied by numerical modeling using high-order compact approximation. Since the profile of shedding vortices may vary dramatically, zero-circulation Taylor vortex model and non-zero circulation Vatistas vortex model were considered to compare generated acoustic waves. Stagnation flow at flat plate (case A) and flow around non-rotating rigid cylinder (case B) are taken as prototypes of real-world flows with strong gradients of mean pressure and velocity. Near-wall deformation of initial vortex by the stagnation flow leads to sound radiation from the generated pressure quadrupole. Gradually decaying velocity profile of the Vatistas vortex creates substantially wider pressure quadrupole than that for the Taylor vortex. As a result, both the amplitude and sector of influence for acoustic waves coming out of the Vatistas vortex are larger than those for the Taylor vortex.

Suggested Citation

  • Povitsky, Alex & Zheng, Tinghui & Vatistas, Georgios H., 2004. "Effect of vortex profile on sound generation in a non-uniform flow," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 65(4), pages 447-468.
  • Handle: RePEc:eee:matcom:v:65:y:2004:i:4:p:447-468
    DOI: 10.1016/j.matcom.2004.01.009
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S037847540400028X
    Download Restriction: Full text for ScienceDirect subscribers only

    File URL: https://libkey.io/10.1016/j.matcom.2004.01.009?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.

    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:eee:matcom:v:65:y:2004:i:4:p:447-468. 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: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/mathematics-and-computers-in-simulation/ .

    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.