Water runs through a water main of cross-sectional area 0.5 m² with a velocity of 6 m/s. Calculate the velocity of the water in the pipe when the pipe tapers down to a cross-sectional area of 0.3 m².
A Newtonian fluid with a dynamic or absolute viscosity of 0.38 Ns/m² and a density of 910 kg/m³ flows through a 25 mm diameter pipe with a velocity of 2.6 m/s. Find out the Reynolds number of the fluid. Is the fluid flow laminar, transient, or turbulent?