Souders–Brown Equation Calculator

Calculate the maximum vapor velocity using: $$ v_f = K \sqrt{\frac{\rho_L – \rho_V}{\rho_V}} $$

* Enter the Souders–Brown constant $ K $ (m/s), liquid density $ \rho_L $ (kg/m³), and vapor density $ \rho_V $ (kg/m³).

Step 1: Enter Parameters

Souders–Brown Constant, $ K $ (m/s):

Typical values range from 0.1 to 0.3 m/s

Liquid Density, $ \rho_L $ (kg/m³):

e.g., 1000 kg/m³ for water

Vapor Density, $ \rho_V $ (kg/m³):

e.g., 5 kg/m³ for typical hydrocarbon vapor

Calculated Maximum Vapor Velocity