Schmidt Number

Written by Jerry Ratzlaff on . Posted in Dimensionless Numbers

Schmidt Number (1892-1975) is a dimensionless number in fluid mechanics used in analyzing fluid flows where there is an interface between two different fluids. 

formula

\(Sc =   \frac {  \nu  }  {  D_m   }    \) 

\(Sc =   \frac {  \mu  }  { \rho D_m   }    \)

Where:

\(Sc\) = Schmidt Number

\(\nu\) (Greek symbol nu) = kinetic viscosity

\(D_m\) = mass diffusivity

\(\mu\) (Greek symbol mu) = dynamic viscosity

\(\rho\) (Greek symbol rho) = density

Solve for:

\(\nu =  Sc  D_m     \) 

\(D_m =   \frac {  \nu  }  {  Sc   }    \)