# Fluid Friction

## Definition - What does Fluid Friction mean?

Fluid Friction is the force that hinders the flow of a fluid. The surface of the fluid offers resistance to the flow. In order to calculate Fluid Friction, fanning friction factor has to be calculated. The branch of science that deals with the study of Fluid Friction is known as Rheology. It is the study of the flow of matter and its deformation, taking into account the plasticity, viscosity and elasticity.

## Petropedia explains Fluid Friction

With respect to science the study of Fluid Friction is a part of Rheology which in turn is a part of geology, which covers the study of water, moving ice, salt magma and deforming rocks. Rheologists are more interested in flow rate and flow pressure relationship. The fanning friction factor helps in calculating the pressure in a flowing liquid. Fluid Friction reducers such as chemical additives alter the rheological properties of the fluid. Due to this alteration the friction is reduced and flow through small tubular or restrictions become easy. It is possible to get up to 50% to 60% reduction of Fluid Friction using these chemicals additives.