Problem 2.56[Difficulty: 2]Given:Flow between two platesFind:Force to move upper plate; Interface velocitySolution:The shear stress is the same throughout (the velocity gradients are linear, and the stresses in the fluid at the interface must beequal and opposite).Henceτμ1du1dy⋅=μ2du2dy⋅=orμ1Vih1⋅μ2VVi−()h2⋅=where Viis the interface velocity
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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.