Engineering Fluid Mechanics (9th edition)authors; crowe, Elger, Williams, Roberson problem 9.62 pg 313.
An engineer is designing a horizontal, rectangular conduit that will be part of a system that allows fish to bypass a dam. Inside the conduit, a flow of water 40F will be divided into two streams by a flat, rectangular metal plate. Calculate the viscous drag force on this plate, assuming boundary-layer flow with free-stream velocity of 15 ft/s and plate dimensions of L = 8 ft and W = 4.0 ft.