A semi-tubular cylinder of 75 mm radius with concave side
Civil UPSC ESE Exam Solution 2021
UPSC ESE Exam Solution 2021 for Civil Engineering UPSC ESE 2021 GS Paper 1 download exam paper from telegram https://telegram.me/civil_experiences
A semi-tubular cylinder of 75 mm radius with concave side upstream (drag coefficient = 2.3) is submerged in flowing water of velocity 0.6 m/s. If the cylinder is 7.2 m long and the density of water is 1000 kg/m3, what is the drag?
Detailed Solution for Civil Engineering Exam
Drag force = (1/2)Cd ρwAV2
Fd = (1/2) * 2.3 * 1000 * ( 7.2 * 0.075 )(0.6)2
Fd = 223.56 N