What are some implications of having viscosity in a fluid?
Viscious fluids are always denser than ideal ones.
Viscous fluids are harder to pour or force through a pipe.
Velocity of flow of a viscous fluid is highest at the walls of a pipe compared to the middle.
The presence of viscosity requires a pressure difference between the ends of a pipe.
Part B
The difference in pressure Δp needed between the ends of a pipe to maintain a viscous fluid flowing depends on several factors:
It decreases with the viscosity coefficient.
It increases with the cross-sectional area of the pipe.
It increases with the length of the pipe.
It increases with the average velocity of flow.