Engine oil at 105°C flows over the surface of a flat plate whose temperature is 15°C with a velocity of 1.6 m/s. Determi

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Engine oil at 105°C flows over the surface of a flat plate whosetemperature is 15°C with a velocity of 1.6 m/s. Determine the localdrag force per unit surface area 0.8 m from the leading edge of theplate. Properties of oil at the film temperature of (105 + 15)/2 =60°C are ρ = 864 kg/m3 and ν = 8.565 × 10−5 m2/s.
The local drag force per unit surface area 0.8 m from theleading edge of the plate is