# Eckert Number

Written by Jerry Ratzlaff on . Posted in Dimensionless Numbers

Eckert number, abbreviated as Ec, is a dimensionless number used to calculate the ratio of the kinetic energy to enthalpy.

### Eckert Number FORMULA

$$\large{ Ec = \frac{v^2 } {2 \; v \; \Delta T} }$$

Where:

$$\large{ Ec }$$ = Eckert number

$$\large{ \Delta T }$$ = temperature differential

$$\large{ v }$$ = velocity

Tags: Equations for Energy