Problem 4.23: Consider a slow, laminar flow of a viscous substance (for example, glycerin...

Problem 4.23: Consider a slow, laminar flow of a viscous substance (for example, glycerin solution) through a narrow channel under controlled pressure drop of 150 Pa/m. The channel is 5 m long (flow direction), 10 cm high, and 50 cm wide. The upper wall of the channel is maintained at while the lower wall is maintained at The viscosity and density of the substance are temperature dependent, as given in Table P4.33. Assuming that the flow is essentially one dimensional (justified by the dimensions of the channel), determine the velocity field and mass flow rate of the fluid through the channel.