Coefficient of Pressure Calculator

Local pressure on the foil (p):

Free-stream pressure (p_∞):

Density of fluid (ρ):

Flow velocity (V):

How This Is Calculated

$$ C_p = \frac{p - p_{∞}}{\frac{1}{2}\rho V^2} $$ where:

C_p = Coefficient of pressure (dimensionless)

p = Local pressure on the foil (Pa)

p_∞ = Free-stream pressure (Pa)

ρ = Density of fluid (kg/m³)

V = Flow Velocity (m/s)

Assumptions

Flow is steady.
Fluid is incompressible.
The free-stream velocity and pressure are uniform
Viscous effects are negligible.
Pressure is static.

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