Bernoulli’s Equation (conservation of energy)


Bernoulli’s equation states that for an incompressible, frictionless fluid, the above mentioned sum is constant. If we follow a small volume of fluid along its path, various quantities in the sum may change, but the total remains constant.

Related formulas


P1Absolute pressure at point 1 (N/m2)
ρFluid density (kg/m3)
v1Velocity of the fluid at point 1 (fluid flow speed) (m/s)
gStandard gravity
h1Height of point 1 above some reference point (m)
P2Absolute pressure at point 2 (N/m2)
v2Velocity of the fluid at point 2 (fluid flow speed) (m/s)
h2Height of point 2 above some reference point (m)