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A wide sheet of smooth planar film, of thickness of 2B, is pulled through the region between a pair of wide parallel planes separated by
A wide sheet of smooth planar film, of thickness of 2B, is pulled through the region between a pair of wide parallel planes separated by a distance 2A. The figure below shows the geometry. The entire space surrounding the film is filled with Newtonian fluid of viscosity . Can you take a small fluid control volume of dxdydz, derive an equation for the velocity profile vx(y) and calculate the volumetric flowrate Q ? Assume that there is no pressure variation in the x direction, and that gravity acts parallel to the y axis
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