Answer: The friction factor in fluid flowing through a pipe depends upon the roughness of the material.
The friction factor is a function of pipe relative roughness and Reynolds number. The ratio of the absolute roughness of the pipe inside the wall to the pipe inside diameter is called the relative roughness of the pipe. The formula to calculate the friction factor depends upon the type of flow conditions. The different types of fluid flows are Streamline Flow, Turbulent Flow, and Transitional Flow. The friction factor is crucial for form flow calculation.
On What Factor the Friction in the Fluid Flowing through the Pipe depends?
The friction factor in fluid flowing through a pipe depends upon the nature of the material. It is dimensionless and for turbulent flow for a given type of surface, it is roughly constant.