Problem 2.53 - Problem 2.53 Given: Varnish-coated wire...

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Problem 2.53 [Difficulty: 2] F x r d D L Given: Varnish-coated wire drawn through die Find: Force required to pull wire Solution: Governing equations: τ yx μ du dy = Σ F x Ma x = Assumptions: Laminar flow; linear velocity profile in varnish layer The given data is D1 m m = d 0.9 mm = L5 0 m m = V5 0 m s = μ 20 10 2 × poise = Equation of motion Σ F x x = so FF v 0 = for steady speed The friction force is F v τ yx A = μ
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This note was uploaded on 10/19/2011 for the course EGN 3353C taught by Professor Lear during the Fall '07 term at University of Florida.

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