2. Consider planar channel flow which is governed by 1 in the domain 0 y 1...

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2. Consider planar channel flow which is governed by 1 in the domain 0 y 1 with no-slip boundary conditions u(0) = u(1) = 0, with dp/dx = -10 and = 1. a) Derive the exact solution. b) Using a 5 point mesh (excluding boundaries) with second order central differences, write the discrete system Au = f 2. Consider planar channel flow which is governed by 1 in the domain 0 y 1 with no-slip boundary conditions u(0) = u(1) = 0, with dp/dx = -10 and = 1. a) Derive the exact solution. b) Using a 5 point mesh (excluding boundaries) with second order central differences, write the discrete system Au = f