IDEAS home Printed from https://ideas.repec.org/a/taf/gcmbxx/v21y2018i8p532-540.html
   My bibliography  Save this article

Numerical analysis and comparison of flow fields in normal larynx and larynx with unilateral vocal fold paralysis

Author

Listed:
  • Amirhossein Bagheri Sarvestani
  • Ebrahim Goshtasbi Rad
  • Kamyar Iravani

Abstract

In this study, laryngeal flow fields are investigated and compared in normal larynx and models of larynx with unilateral vocal fold paralysis (UVFP). In paralytic models, three fixed initial glottal gaps are considered to understand the positive or probable negative impacts of surgical operation on unilaterally paralytic larynx, by which the paralyzed vocal fold is brought closer to the mid-plane. Various features of the flow fields have been discussed in detail including glottal gap width, glottal flow rate, glottal exit pressure pattern and glottal jet evolution. The numerical solution of fluid-structure interaction is carried out using ANSYS, and the results confirm some of the favorable effects of surgery on the patient’s larynx. It is also shown that by tightening the glottal gap, some of the problems caused by the presence of a motionless vocal fold, such as leakage through glottal gap in the closure phase resulting in breathy voice can be moderated, although some of the symptoms of this disorder remain relatively unchanged.

Suggested Citation

  • Amirhossein Bagheri Sarvestani & Ebrahim Goshtasbi Rad & Kamyar Iravani, 2018. "Numerical analysis and comparison of flow fields in normal larynx and larynx with unilateral vocal fold paralysis," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 21(8), pages 532-540, June.
    • Handle: RePEc:taf:gcmbxx:v:21:y:2018:i:8:p:532-540
    DOI: 10.1080/10255842.2018.1499898
    as

    Download full text from publisher

    File URL: http://hdl.handle.net/10.1080/10255842.2018.1499898
    Download Restriction: Access to full text is restricted to subscribers.
    File URL: https://libkey.io/10.1080/10255842.2018.1499898?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.

    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:taf:gcmbxx:v:21:y:2018:i:8:p:532-540. 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: Chris Longhurst (email available below). General contact details of provider: http://www.tandfonline.com/gcmb .

    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.