Terminal Velocity Calculator using Stoke’s Law

Calculate the terminal velocity of a sphere using Stoke’s Law:
\( v_t = \frac{2}{9}\frac{r^2 (\rho_p – \rho_f) g}{\mu} \)
where \( r \) is the sphere’s radius (m), \( \rho_p \) is the particle density (kg/m³), \( \rho_f \) is the fluid density (kg/m³), \( g \) is the gravitational acceleration (m/s²), and \( \mu \) is the dynamic viscosity (Pa·s).

* Enter the required values to calculate the terminal velocity.

Step 1: Enter Parameters

Radius, \( r \) (m):

Example: 0.01 m

Particle Density, \( \rho_p \) (kg/m³):

Example: 2500 kg/m³

Fluid Density, \( \rho_f \) (kg/m³):

Example: 1000 kg/m³

Gravitational Acceleration, \( g \) (m/s²):

Default: 9.81 m/s²

Dynamic Viscosity, \( \mu \) (Pa·s):

Example: 0.001 Pa·s

Step 1: Enter Parameters

Calculated Terminal Velocity