“Power required for turbulent flow is independent of the viscosity of the fluid but proportional to fluid density”, this statement is applicable to which type of regime?

“Power required for turbulent flow is independent of the viscosity of the fluid but proportional to fluid density”, this statement is applicable to which type of regime? Correct Answer Turbulent regime

In turbulent regime, Power required for turbulent flow is independent of the viscosity of the fluid but proportional to fluid density. The turbulent regime is fully developed at Rei > 103 or 104 for most small impellers in baffled vessels. For the same impellers in vessels without baffles, the power curves are somewhat different, Without baffles, turbulence is not fully developed until Rei > 105; even then the value of Np’ is reduced to between 1/2 and 1/10 that with baffles.