Cavitation Number Calculator: Online Fluid Dynamics Tool

Calculate Cavitation Number (σ)

Enter the local static pressure in Pascals (Pa).
Enter the vapor pressure of the liquid in Pascals (Pa).
Enter the density of the liquid in kilograms per cubic meter (kg/m³).
Enter the upstream velocity of the liquid in meters per second (m/s).

Utilize our Cavitation Number Calculator to assess the likelihood of cavitation in your fluid systems. This essential tool helps engineers and researchers determine the risk of vapor bubble formation in liquid flows, protecting critical equipment like pumps and turbines from damage. Understand your fluid mechanics with ease.

Formula:

The Cavitation Number (σ) is calculated using the formula:

σ = (P - Pv) / (0.5 * ρ * V2)

Where:
  • P = Local static pressure (Pascals, Pa)
  • Pv = Vapor pressure of the liquid (Pascals, Pa)
  • ρ = Density of the liquid (kilograms per cubic meter, kg/m³)
  • V = Upstream velocity of the liquid (meters per second, m/s)

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