Numerical simulation of double-layer optical fiber coating using Oldroyd 8-constant fluid as a coating material

Zeeshan Khan; Haroon Ur Rasheed; Qayyum Shah; Tariq Abbas; Murad Ullah

doi:10.1117/1.OE.57.7.076104

23 July 2018 Numerical simulation of double-layer optical fiber coating using Oldroyd 8-constant fluid as a coating material

Zeeshan Khan, Haroon Ur Rasheed, Qayyum Shah, Tariq Abbas, Murad Ullah

Author Affiliations +

Optical Engineering, Vol. 57, Issue 7, 076104 (July 2018). https://doi.org/10.1117/1.OE.57.7.076104

Abstract

Polymer flow during wire coating in a pressure type coating die has been simulated under nonisothermal conditions. The flow is dependent on the wire velocity, geometry of the die, and the viscosity of the polymer. The constitutive equation of an Oldroyd 8-constant fluid is used to characterize the rheology of the polymer melt. The equation describing the flow of polymer melt inside the die is solved (i) analytically by applying optimal homotopy asymptotic method and (ii) numerically by shooting method with Runge–Kutta–Fehlberg algorithm. The convergence of the series solution is established. The effect of physical characteristics of the problem has been discussed in detail through graphs by assigning numerical values for several parameters of interest. At the end, this study is also compared with the published work as a particular case and good agreement is found.

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Zeeshan Khan, Haroon Ur Rasheed, Qayyum Shah, Tariq Abbas, and Murad Ullah "Numerical simulation of double-layer optical fiber coating using Oldroyd 8-constant fluid as a coating material," Optical Engineering 57(7), 076104 (23 July 2018). https://doi.org/10.1117/1.OE.57.7.076104

Received: 3 May 2018; Accepted: 29 June 2018; Published: 23 July 2018

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