2. A special fluid flows through a horizontal channel. This fluid is different because the dynamic viscosity is not cons

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2 A Special Fluid Flows Through A Horizontal Channel This Fluid Is Different Because The Dynamic Viscosity Is Not Cons 1 (20.85 KiB) Viewed 50 times

2. A special fluid flows through a horizontal channel. This fluid is different because the dynamic viscosity is not constant. The viscosity changes with the depth as 11 = (0.4 -0.14) Pa-s. Where y is the height from the lower surface. The flow is fully developed, laminar flow and is driven by a pressure gradient. The pressure gradient is dP/dx = -0.01 Pa/m. (the negative sign indicates that the pressure is reducing in the direction of the flow). The height of the channel is 2 m. What is the maximum flow velocity? Please give your answer accurate to four significant digits after the decimal.