A laboratory experiment is set up to measure pressure drop for flow of water through a smooth tube. The tube diameter is \(15.9 \mathrm{~mm}\), and its length is \(3.56 \mathrm{~m}\). Flow enters the tube from a reservoir through a square-edged entrance. Calculate the volume flow rate needed to obtain turbulent flow in the tube. Evaluate the reservoir height differential required to obtain turbulent flow in the tube.