Abstract
Wire coating process is a continuous extrusion process for primary insulation of conducting wires with molten polymers for mechanical strength and protection in aggressive environments. In the present study, radiative melt polymer satisfying third grade fluid model is used for wire coating process. The effect of magnetic parameter, thermal radiation parameter and temperature dependent viscosity on wire coating analysis has been investigated. Reynolds model and Vogel’s models have been incorporated for variable viscosity. The governing equations characterizing the flow and heat transfer phenomena are solved analytically by utilizing homotopy analysis method (HAM). The computed results are also verified by ND-Solve method (Numerical technique) and Adomian Decomposition Method (ADM). The effect of pertinent parameters is shown graphically. In addition, the instability of the flow in the flows of the wall of the extrusion die is well marked in the case of the Vogel model as pointed by Nhan-Phan-Thien.
Highlights
Investigation on the boundary-layer behavior of a viscoelastic fluid over a continuously stretching surface has many important applications in the extrusion of polymers, the treatment of plastic films and applications
In view of the above motivation, the objective of the present study is to analyze the wire coating process using coating material modeled as third grade fluids such as melt polymer and considering temperature dependent viscosity by utilizing Reynolds and Vogel’s models
Wire coating process is analyzed in a pressure type coating die using viscoelastic third grade fluid with variable viscosity
Summary
Investigation on the boundary-layer behavior of a viscoelastic fluid over a continuously stretching surface has many important applications in the extrusion of polymers, the treatment of plastic films and applications. Important applications of these industrial processes have led to renewed interest in the study of viscous fluid flows and heat transfer in the coating process. Metal coating is an industrial process for insulation isolation, environmental protection, mechanical deterioration and protection against signal attenuation. The simple and suitable process for wire coating is the coaxial extrusion process [1,2,3,4]. Wire drawing rate, temperature and quality of materials are important parameters.
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