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Physical properties of fluid and fluid transport in piping system

Laminar and turbulent flow in pipe

General energy equation - Bernoulli theorem

Flow in pipes and valves theory - full content

If friction losses are neglected and no energy is added to, or taken from a piping system, the total head, H, which is the sum of the elevation head, the pressure head and the velocity head will be constant for any point of fluid streamline.

This is the expression of law of energy conservation to the flow of fluid in a conduit or streamline and is known as Bernoulli theorem:

where is:

  • Z1,2 - elevation above reference level
  • p1,2 - absolute pressure
  • v1,2 - velocity
  • &rho1,2 - density
  • g - acceleration of gravity

<< Reynolds number -- Static, dynamic and total pressure >>

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