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A theoretical analysis of roll-over-web coating of couple stress fluid.

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Title: A theoretical analysis of roll-over-web coating of couple stress fluid.
Authors: Ali, Nasir1, Atif, Hafiz Muhammad1, Javed, Muhammad Asif1 rana_asif_iiui@yahoo.com, Sajid, Muhammad1
Source: Journal of Plastic Film & Sheeting. Jan2018, Vol. 34 Issue 1, p43-59. 17p.
Abstract: This paper presents the roll-coating analysis of couple stress fluid under lubrication approximation theory. The governing differential equation developed under the approximation is solved to get exact expressions for velocity and pressure gradient. The engineering quantities of interest such as pressure, roll-separating (load-carrying) force, and power input function are computed numerically. How the couple stress fluid material parameter affects velocity, pressure, pressure gradient, load-carrying force, and power input is shown graphically. One observes that couple stress model predicts higher pressure in the nip region when compared to the Newtonian model. The load-carrying force and power input exceed their Newtonian values for strong couple stress effects. Moreover, the separation point moves left of its Newtonian value with increasing couple stress effects. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Plastic Film & Sheeting is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 126956972
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: A theoretical analysis of roll-over-web coating of couple stress fluid.
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  Data: <searchLink fieldCode="AR" term="%22Ali%2C+Nasir%22">Ali, Nasir</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Atif%2C+Hafiz+Muhammad%22">Atif, Hafiz Muhammad</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Javed%2C+Muhammad+Asif%22">Javed, Muhammad Asif</searchLink><relatesTo>1</relatesTo><i> rana_asif_iiui@yahoo.com</i><br /><searchLink fieldCode="AR" term="%22Sajid%2C+Muhammad%22">Sajid, Muhammad</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Plastic+Film+%26+Sheeting%22">Journal of Plastic Film & Sheeting</searchLink>. Jan2018, Vol. 34 Issue 1, p43-59. 17p.
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This paper presents the roll-coating analysis of couple stress fluid under lubrication approximation theory. The governing differential equation developed under the approximation is solved to get exact expressions for velocity and pressure gradient. The engineering quantities of interest such as pressure, roll-separating (load-carrying) force, and power input function are computed numerically. How the couple stress fluid material parameter affects velocity, pressure, pressure gradient, load-carrying force, and power input is shown graphically. One observes that couple stress model predicts higher pressure in the nip region when compared to the Newtonian model. The load-carrying force and power input exceed their Newtonian values for strong couple stress effects. Moreover, the separation point moves left of its Newtonian value with increasing couple stress effects. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Plastic Film & Sheeting is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1177/8756087917694934
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      – Code: eng
        Text: English
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        PageCount: 17
        StartPage: 43
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      – TitleFull: A theoretical analysis of roll-over-web coating of couple stress fluid.
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            NameFull: Ali, Nasir
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            NameFull: Atif, Hafiz Muhammad
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            NameFull: Javed, Muhammad Asif
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            NameFull: Sajid, Muhammad
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            – D: 01
              M: 01
              Text: Jan2018
              Type: published
              Y: 2018
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              Value: 34
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            – TitleFull: Journal of Plastic Film & Sheeting
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