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

\(\large{ Ec = \frac{v^2 } {2  \; c \;  \Delta T}   }\)     

Where:

\(\large{ Ec }\) = Eckert number

\(\large{ \Delta T }\) = change in temperature

\(\large{ v }\) = characteristic flow velocity

\(\large{ c }\) = specific heat

Solve for:

\(\large{ v =  \sqrt  {  2  \;  Ec \; c \;  \Delta T     }    }\)

\(\large{ \Delta T = \frac{v^2 } {2 \;  Ec  \; c}  }\)

 

Tags: Equations for Energy