What is the term for the head loss that results from resistance to flow in a pipe?

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Multiple Choice

What is the term for the head loss that results from resistance to flow in a pipe?

Friction head is the term for head loss caused by resistance to flow in a pipe. As water moves, the rough interior walls create shear and turbulence, dissipating energy and causing a drop in hydraulic head along the pipe. This loss depends on how long the pipe is, its diameter, roughness, and the flow rate (and thus velocity). A common way to quantify it is the Darcy-Weisbach equation, h_f = f (L/D) (v^2/(2g)), where f reflects the friction factor from Reynolds number and roughness. In the energy balance, pressure head and elevation head represent energy available, while friction head represents the energy you lose as the water struggles through the pipe. Minor losses from fittings add to total head loss but are separate from this primary friction term.

Friction head is the term for head loss caused by resistance to flow in a pipe. As water moves, the rough interior walls create shear and turbulence, dissipating energy and causing a drop in hydraulic head along the pipe. This loss depends on how long the pipe is, its diameter, roughness, and the flow rate (and thus velocity). A common way to quantify it is the Darcy-Weisbach equation, h_f = f (L/D) (v^2/(2g)), where f reflects the friction factor from Reynolds number and roughness. In the energy balance, pressure head and elevation head represent energy available, while friction head represents the energy you lose as the water struggles through the pipe. Minor losses from fittings add to total head loss but are separate from this primary friction term.

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