The total energy of a compressible system consists of kinetic,
potential and internal energy but in case of flowing fluid, the fluid
possesses another form of energy which is called as flow energy
(P/?). Then the total energy of a flowing fluid on the unit mass basis
eflowing = u + (P/?) + ke + pe …. (kJ/kg)
= h+ ke + pe ….(kJ/kg)
h=u + pv = u+ P/?