Peclet Number
Peclet number is proportional to { (bulk heat transfer) / (conductive heat transfer) } and is used in heat transfer in general and forced convection calculations in particular. It is equivalent to (Re.Pr). It is normally defined in one of the following forms :
or
or
Where: |
alpha |
= |
Thermal diffusivity |
Cp |
= |
Heat capacity |
D |
= |
Characteristic length |
G |
= |
Mass velocity |
k |
= |
Thermal Conductivity |
rho |
= |
Density |
V |
= |
Velocity |
|
