Cf. Delale et al., ASYMPTOTIC SOLUTION OF TRANSONIC NOZZLE FLOWS WITH HOMOGENEOUS CONDENSATION .1. SUBCRITICAL FLOWS, Physics of fluids. A, Fluid dynamics, 5(11), 1993, pp. 2969-2981
The one-dimensional (1-D) asymptotic solution of subcritical transonic
nozzle flows with nonequilibrium homogeneous condensation is presente
d. An algorithm based on a local iterative scheme that exhibits the as
ymptotic solution in distinct condensation zones is developed for tran
sonic moist air expansions under atmospheric supply conditions. Two mo
dels that characterize the state of the condensed phase as water drops
or ice crystals are employed, together with the classical nucleation
theory and Hertz-Knudsen droplet growth law. It is shown that the 1-D
asymptotic predictions are in good agreement with the recent static pr
essure measurements of moist air expansions in relatively slender nozz
les when the condensed phase is assumed to consist purely of water dro
ps.