Phase transition dynamics of liquid phase precipitation from a supersaturated gas mixture

摘要: This work presents a self-consistent description of phase transition dynamics disperse liquid precipitating from supersaturated gas mixture. The unified approach integrates the macroscale transport phenomena cloud with essential microphysical kinetic processes droplet condensation, evaporation, and collisions simultaneously taking place in stochastic population droplets. A complete set governing equations well-defined dissipative fluxes rates is derived for nucleation to postnucleation coarsening stages. local thermodynamics system, which considered as ternary mixture water vapor dry air, redefined explicitly include on equal basis both content into fundamental thermodynamic relations equation state. molecular flux regularization method growth submicron droplets reexamined include, among others, significant contribution energy total heat flux, resulting new expressions temperature, rate, effective diffusion coefficients. are determined microscale distribution function. contrast commonly used semiempirical parametrization schemes adjustable parameters, wherein probabilistic aspects not rigorously addressed. Stochastic interactions competing available modifications growing direct long-range amongst them discussed formulated well.