ANALYTIC STUDY OF STEADY MHD FLOW OF DOUBLE-LAYER OPTICAL FIBER IN A POROUS MEDIUM WITH HEAT TRANSFER
Keywords:
Double-layer, Optical fiber, Magneto-hydro-dynamics, wet-on-wet process, porosity, PTT Fluid, Coaxial extrusion, Darcy’s permeability, Lorentz force, Axial Direction.Abstract
Now a days, the coating of double-layer optical fiber attracts many engineers and scientists because of its modern applications which provides the protection for mechanical damage and signal attenuation. In this article, the coating of double-layer optical fiber with magneto-hydro-dynamics (MHD) is performed by using the Phan- Thein-Tanner (PTT) fluid model which is satisfied by melt polymer in a pressure type die using wet-on-wet coating process in a porous medium. Here we assume that PTT fluid model is fully developed. The double-layer immiscible fluid flows is modeled in an annular die, where the fiber is dragged with a sufficient speed. The governing equations for velocity and temperature profiles are solved exactly and the effects of embedded parameters are analyzed graphically.
