Question: Problem 4. Two immiscible fluids are contained between infinite stationary parallel plates. The plates are separated by distance of 2h, and the two fluid

Problem 4. Two immiscible fluids are contained between infinite stationary parallel plates. The plates are separated by distance of 2h, and the two fluid layers are of equal thickness h = 5 mm. The dynamic viscosity of the upper fluid is four times that of the lower fluid, which is lower = 0.1 Ns/m. If the applied pressure gradient is -50 kPa/m, find the velocity at the interface. What is the maximum velocity of the flow?

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