Energy line

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In engineering, especially in hydraulic engineering , the energy line is the course of the sum of potential and kinetic energy along a river or a pipeline . The determination is based on Bernoulli's energy equation by converting the energy components into equivalent heights.

  • In the case of a frictionless flow, the energy level would be constant,
  • In the case of a non-frictionless flow, the energy level decreases with the running distance (due to the loss of energy through friction).

Especially in the case of rivers, the energy line is the sum of the water level and the velocity .