Stagnation enthalpy
= Stagnation enthalpy
{title2=$h_0=h+u^2/2$}
The sum of specific <enthalpy> and macroscopic <kinetic energy> per unit <mass>. In a steady adiabatic flow without shaft work, its change is determined by the change in external <potential energy>. At essentially constant external <potential energy>, it is conserved through a stationary nonradiating <shock wave> even though <entropy> increases.