Section: Fluid Mechanics | Type: NAT | Marks: 2
Consider two-dimensional turbulent flow of air over a horizontal flat plate of length 1 m. Skin friction coefficient at a length x from the leading edge of the plate is obtained as: ( ) 2.0 Re 06 .0 x fc = where, Rex is the local Reynolds number. Find out the drag force per unit width (in N/m2) on the plate if the free stream air velocity is 10 m/s. Density and dynamic viscosity of air are given as 1.2 kg/m3 and 1.83x10-5 N-s/m2, respectively. (Round off to three decimal places)
Answer: Marks awarded to all candidates (official key: MTA)