Froude Number

Written by Jerry Ratzlaff on . Posted in Dimensionless Numbers

Froude Number is the ratio of inertial force to gravitational force. It is used for wave and surface behavior for mixed natural and forced convection.

FORMULA

\(Fr =  \frac {v}  { \sqrt { g   h_m }  }      \)

Where:

\(Fr  \) = Froude Number

\(v  \) = flow velocity

\(g  \) = gravitational acceleration

\(h_m \) = mean depth

Solve for:

\(v =  Fr \sqrt { g  h_m }  \)

\(g =  \frac {v^2}  { h_m   {Fr}^2  }    \)

\(h_m =  \frac {v^2}  { g  {Fr}^2  }  \)