Chapter 9: Problem 12
A hollow cylindrical drum has an internal diameter of \(600 \mathrm{~mm}\) and is full of oil of relative density \(0.9\). At the centre of the upper face is a small hole open to atmosphere. Concentric with the axis of the drum (which is vertical) is a set of paddles \(300 \mathrm{~mm}\) in diameter. Assuming that all the oil in the central \(300 \mathrm{~mm}\), diameter rotates as a forced vortex with the paddles and that the oil outside this diameter moves as a free vortex, calculate the additional force exerted by the oil on the top of the drum when the paddles are steadily rotated at 8 revolutions per second.
Short Answer
Step by step solution
Key Concepts
These are the key concepts you need to understand to accurately answer the question.