Analytic investigation of the effect of condensation shock on turbulent boundary layer parameters of nucleating flow in a supersonic convergent-divergent nozzle

Under the inuence of intense expansion and supersonic acceleration of thesteam ow in a divergent channel, the instability of the ow intensies. in the lack ofexternal surfaces, this non-equilibrium state causes nucleation and consequent growth offormed nuclei. due to the release of latent heat from condensation to the supersonic ow atthe location of nucleation, an increase in pressure is developed in this small region, whichis known as condensation shock. in this research, the eects of this shock on boundarylayer parameters are investigated. first, the water vapor ow that has the capability ofnucleation is modeled analytically, as adiabatic, inviscid and one dimensional, and then,using the mathematical equations of laminar and turbulent boundary layer parameters andthe inviscid-viscous interaction method. the results of this analytical modeling show thatalthough the inuence of the boundary layer on the expansion ow is limited, it still causesapproximately 3% increase in the diameter of the water droplets. however, the eects oftwo-phase ow on the boundary layer parameters at the location of the condensation shockare considerable. the major novelty of this research is determining the quantication andqualication of these eects.