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Pressure Coefficient

The Pressure Coefficient is the ratio of pressure forces to inertial forces.

The pressure coefficient is is the ratio of pressure forces to inertial forces and can be expressed as

Cp = dP / (ρ v2 / 2)

    = dh (ρ v2 / 2 g)                                       (1)


Cp = pressure coefficient

dp = pressure difference (N)

ρ = fluid density (kg/m3)

v = flow velocity (m/s)

dh = head (m)

g = acceleration of gravity (= 9.81 m/s2)

The pressure coefficient is important in most fluid flow applications.

Related Topics

  • Fluid Mechanics

    The study of fluids - liquids and gases. Involving velocity, pressure, density and temperature as functions of space and time.

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