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Consider fully developed flow of a viscous epoxy resin film ( of thickness b) down a plate. At x = 0, the fluid is exposed
Consider fully developed flow of a viscous epoxy resin film ( of thickness b) down a plate. At x = 0, the fluid is exposed to air. At x == b, the plate is pulled upward at speed Up. In th e coordinate system shown, and calling Vy == v, (a.) solve for the velocity profile v(x}. Show your boundary conditions clearly. (b.) What is the shear stress. Txy, of the fluid at the plate? ( c.) What value of Up is required such that the net channel flow, 0, is zero? Simplify as much as possible. Express all answers only in terms of Up, g, b, p, and. Assume no pressure gradient: dP / dy == 0
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