Dragging a film of viscous liquid of thickness

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Reference no: EM131147596

A belt moves upward at velocity V, dragging a film of viscous liquid of thickness h, as in Fig. C4.2. Near the belt, the film moves upward due to no slip. At its outer edge, the film moves downward due to gravity. Assuming that the only nonzero velocity is (x), with zero shear stress at the outer film edge, derive a formula for (a) (x),

(b) the average velocity Vavg in the film, and

(d) Sketch (x) for case

(c). remains the same, the volume flow rate will increase by a factor of

(a) 2,

(b) 4,

(d) 12,

(e) 16

Reference no: EM131147596

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