KSB Centrifugal Pump Lexicon –

From A to Z

Bernoulli's equation

Developed by Daniel Bernoulli, Bernoulli's equation is an energy balance equation in fluid mechanics ("Energy cannot be lost") which dates back to the 18th century. Today, it still represents the basis for important aero- and hydrodynamic calculations (see also Fluid mechanics).

ptot: total pressure
p: pressure
ρ: density
v: flow velocity
g: acceleration due to gravity
z: height compared to zero level


  

  

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