Borda-Carnot Equation

Borda-Carnot Equation

Borda-Carnot equation is a empirical description of the mechanical loss energy losses of the fluid due to a sudden flow expansion.  It describes how the total head reduces due to the losses.

Borda-Carnot formula

\(\Delta E = \epsilon \frac { 1 } { 2 } \rho \left({v_1-v_2}\right)^2 \)      

Where:

\( \Delta E \) = fluid mechanical energy loss

\(\epsilon\) (Greek symbol epsilon) = empirical loss coefficient

\(\rho\) (Greek symbol rho) = fluid density

\(v_1\) = mean flow velocity before expansion

\(v_2\) = mean flow velocity after expansion