you can analyze the energy transfer in terms of kinetic energy and enthalpy changes during the combustion and expansion processes. The total energy per unit mass at the nozzle exit can be expressed as the sum of the enthalpy and kinetic energy of the combustion products.
The total energy () at the nozzle Inlet can be expressed as:
where,
- E is the Total Energy, i.e sum of kinetic and potential energy
- is the Static Enthalpy at nozzle Inlet,
- is the velocity of the incoming air relative to the reference frame of the engine