1.

The average drag coefficient for turbulent boundary layer flow past a thin plate is given by
C f = 0.455/ (log 10 R el) 2.58

A. nWhere R <sub>el </sub>is the Reynolds number based on plate length. A plate 50 cm wide and 5 m long is kept parallel to the flow of water with free stream velocity 3 m/s. Calculate the drag force on both sides of the plate. For water, kinematic viscosity = 0.01 stokes
B. 53.38 N
C. 63.38 N
D. 73.38 N
E. 83.38 N
Answer» C. 63.38 N


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