Vadasz Number

Written by Jerry Ratzlaff on . Posted in Dimensionless Numbers

Vadasz number, abbreviated as Va, a dimensionless number, governs the effect of porosity on flow in a porous media.

Vadasz Number Formula

\(\large{ Va =  \frac { \phi \; Pr }{ Da } }\)

Where:

\(\large{ Va }\) = Vadasz number

\(\large{ f_d }\) = Darcy friction factor

\(\large{ \phi }\)  (Greek symbol phi) = porous media

\(\large{ Pr }\) = Prandtl number