i. Using Navier-Stokes equations in a cylindrical coordinate system along with appropriate boundary conditions, derive an expression for the z velocity as a function of the radial coordinate r. ii. Show that the amount of polymer coated per unit time, say M, is given by R²V [k² (1-2 lnk)-1] M=p- 2 Ink where p denotes the density of the molten (liquid) polymer.

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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i. Using Navier-Stokes equations in a cylindrical coordinate system along with appropriate
boundary conditions, derive an expression for the z velocity as a function of the radial
coordinate r.
ii. Show that the amount of polymer coated per unit time, say M, is given by
M=pR²V [k²(1-2Ink)-1]
2 lnk
where p denotes the density of the molten (liquid) polymer.
Transcribed Image Text:i. Using Navier-Stokes equations in a cylindrical coordinate system along with appropriate boundary conditions, derive an expression for the z velocity as a function of the radial coordinate r. ii. Show that the amount of polymer coated per unit time, say M, is given by M=pR²V [k²(1-2Ink)-1] 2 lnk where p denotes the density of the molten (liquid) polymer.
R
2kR
Wire
Molten Polymer
->V
Let's assume steady, isothermal, and incompressible flow.
Transcribed Image Text:R 2kR Wire Molten Polymer ->V Let's assume steady, isothermal, and incompressible flow.
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