Literature Review.

Friction factor is independent of the Reynolds number (Darcy, H. : Recherches experimentales relatives au mouvement de 1'eau dans les tuyaux. Memoires a l'Academie d. Sciences de 1'Institute 
imperial de France, Bd. 15, 1858, p. 141.)

Relative roughness (k/r) where k is absolute roughness. (v. Mises, R.: Elemente der technischen Hydrodynamik. Leipzig, B. G. Teubner 1914.)

Since kinematic viscosity impacts the Reynolds number, I would like to understand what kinematic viscosity really means.

Kinematics: Geometric in nature, defines motion without regard to forces that cause motion or result from motion.

Kinematic viscosity is traditionally measured by noting the time taken for a fluid sample to travel through an orifice in a capillary under the force of gravity.

Every type of fluid possesses differing amounts of resistances against deformation. The measure of that resistance is called viscosity. Viscosity expresses the fluid’s resistance against either tensional stress, or shear stress.