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Friction Loss

Friction is the resistance required for moving a body through an external surface. But the friction loss is connected to the flow of liquid through a pipe. In other sense, it is a kind of energy loss because of the friction inside the tube. It is intimately related to the velocity and viscosity of the fluid. Friction loss can be articulated as hl as friction loss is nothing but the energy or head loss. Friction loss formula is articulated as,

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the friction factor is f
the length of pipe is L
the inner diameter of the pipe is D
the velocity of the liquid is v
the gravitational constant  is g

the friction loss is hl

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