1. The latent heat of condensation and the water vapor don't play decisive roles in formation of the vortex, but play key roles in vortex maintenance and structure characteristics evolvement.

2. The heat of condensation is equal to the heat of vaporization.

3. It is necessary to include as a heat source in the thermodynamic energy equation a term which represents the time rate of release of the latent heat of condensation of water vapor.

4. The values obtained are higher heating values which include the heat of condensation from water formed in the combustion of fuel.

5. It is shown that the parameters of the flow field are disturbed and a condensation shock is generated due to the sudden release of the latent heat of condensation.