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GATE Mechanical Engineering (ME) 2021 Shift 1 Solved Paper

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Question : 32

Total: 65

Consider fully developed, steady state incompressible laminar flow of a viscous fluid between two large parallel horizontal plates. The bottom plate is fixed and the top plate moves with a constant velocity of U = 4 m/s. Separation between the plates is 5 mm. There is no pressure gradient in the direction of flow. The density of fluid is 800 kg/m³, and the kinematic viscosity is 1.25 × 10^-4 m²/s. The average shear stress in the fluid is ______ Pa (round off to the nearest integer).

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