HETEROGENEOUS NUCLEATION IN NONUNIFORM MEDIA - NUMERICAL SIMULATIONS

Water nucleation on an aerosol particle under conditions of fluctuatin g saturation ratio has been simulated in the present study. We have co nstructed a model which allows one to reduce the description of the pr oblem to two parameters, namely, standard deviation of the saturation ratio and correlation time for the saturation ratio near an aerosol pa rticle. In contrast to the former parameter, the importance of the lat ter one is not so evident, and we emphasize it here. The saturation ra tio fluctuations enhance the nucleation probability on insoluble aeros ol particles, this might be important for atmospheric and technical ap plications.