Graetz Number

Written by Jerry Ratzlaff on . Posted in Dimensionless Numbers

Graetz Number

Graetz number ( \(Gz\) ) (dimensionless number) characterizes laminar flow with heat transfer in a conduit.    

Graetz Number formula

\(\large{ Gz = \frac {d}{l} Re Pr }\)         

Where:

\(\large{ Gz }\) = Graetz number

\(\large{ d }\) = diameter

\(\large{ l }\) = length

\(\large{ Re }\) = Reynolds number

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

 

Tags: Equations for Heat Transfer Equations for Heat