This resistance is termed as pipe friction and is measured in meters head of the fluid. Friction loss can be computed as \(h_l\) as friction loss is nothing but the energy loss. It is therefore related to the velocity and viscosity of the fluid. Thus, it is a kind of energy loss due to the friction inside the tube. But the friction loss is related to the flow of liquid through some pipe. Let us learn it! What is Friction Loss?įriction may be observed as the resistance required for moving a body through the external surface. This topic will deal with friction loss concepts and friction loss formula with examples. By observation, we may see that this loss is roughly proportional to the square of the flow rate in most engineering flows. Friction losses are a complex function of the system geometry and it corresponds to the fluid properties and the flow rate in the system. These turbulences occur along the internal pipe wall, which will be dependent on the roughness of the pipe material. The flow of fluid through a pipe is resisted due to the viscous shear stresses within the fluid and the turbulence.
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