Vadasz Number

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

\( Va \;=\;   \phi \; Pr \;/\; Da \)     (Vadasz Number)

\( \phi \;=\;   Va \; Da \;/\; Pr \)

\( Pr \;=\; Va \; Da \;/\; \phi \)

\( Da \;=\; \phi \; Pr \;/\; Va \)

Symbol English Metric
\( Va \) = Vadasz number \( dimensionless \) \( dimensionless \)
\( \phi \)  (Greek symbol phi) = porous media \( dimensionless \) \( dimensionless \)
\( Pr \) = Prandtl number \( dimensionless \) \( dimensionless \)
\( Da \) = Darcy friction factor \( dimensionless \) \( dimensionless \)

 

P D Logo 1 

Tags: Soil