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    Numerical simulation of non-Newtonian polymer film flow on a rotating spoked annulus

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    Authors
    Hossain, Mohammad Sayeed
    Ashraf, Muhammad Arif
    Al-Assaf, Saphwan
    McMillan, Alison
    Affiliation
    Wrexham Glyndwr University; Military Technological College, Oman; University of Chester
    Publication Date
    2017-03-03
    
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    Abstract
    The current study presents results from a series of numerical analyses of non-Newtonian liquid film formation on a rotating spoked annulus. The film flow of a common type of polyester, poly(ethylene terephthalate) (PET), on a vertically rotating disk was modeled numerically. Two different molecular weights, corresponding to different viscosities for PET, and under flow at different rotating speeds, were considered. The film thickness profile was obtained at different radial and angular positions of the rotating disk in the simulations, which is beneficial in calculating the volume of polymer taken up by the rotating disk and also in calculating the volumetric flow rates on the disk. Two types of disks, including a standard solid disk and a number of hollow disk designs with spoked annuli, were considered, and the film flow was modeled using a volume of fluid computational fluid dynamics analysis. The analyses of flow over spoked annulus designs highlighted the advantage of such designs over the use of a conventional solid disk. It was found that the variation in the film thickness for the spoked annulus was lower than that for the conventional solid disk. The parametric study also provided a favorable spoked annulus design for which the film thickness was essentially constant. A constant film thickness would provide a constant film flow, which can be a benefit to many industrial applications. © 2017 Wiley Periodicals, Inc.
    Citation
    Hossain, M. S., Ashraf, M. A., Al-Assaf, S., & McMillan, A. (2017). Numerical simulation of non-Newtonian polymer film flow on a rotating spoked annulus. Journal of Applied Polymer Science, 134(25), article-number 44943. https://doi.org/10.1002/app.44943
    Publisher
    Wiley
    Journal
    Journal of Applied Polymer Science
    URI
    http://hdl.handle.net/10034/622642
    DOI
    10.1002/app.44943
    Additional Links
    https://onlinelibrary.wiley.com/doi/10.1002/app.44943
    Type
    Article
    Description
    This is the peer reviewed version of the following article: [Hossain, M. S., Ashraf, M. A., Al-Assaf, S., & McMillan, A. (2017). Numerical simulation of non-Newtonian polymer film flow on a rotating spoked annulus. Journal of Applied Polymer Science, 134(25), article-number 44943], which has been published in final form at [https://doi.org/10.1002/app.44943]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
    ISSN
    0021-8995
    EISSN
    1097-4628
    ae974a485f413a2113503eed53cd6c53
    10.1002/app.44943
    Scopus Count
    Collections
    Clinical Sciences and Nutrition

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