Condensing vapor flow calculation on the basis of the monomolecular condensation model (Q1178561)

The authors consider the model of monomolecular condensation. They assume the condensing vapor to be a mixture of ideal gases composed of molecules and clusters having the same velocity and translational-rotational temperature. The basic equations of gas dynamics (the continuity equation, the equations of motion and the energy equation), the equation of state and the expression for specific enthalpy of the mixture are used. To close this system, the authors write down the kinetic equations describing the evolution of the mass fraction of clusters along a streamline as a result of the processes of condensation and relaxation of the cluster vibrational energy. An algorithm for calculating condensing vapor flows is developed.