Numerical simulation of vapor bulk condensation near the interphase surface under intensive evaporation conditions

The results of the numerical solution of the Boltzmann kinetic equation for intensive evaporation from the interfacial surface were used to calculate the kinetics of the bulk condensation process near the evaporation surface. It was shown that during the period of existence of the supersaturated state, which was predicted on the basis of the solution without considering condensation, the condensation aerosol has time to form. When analyzing evaporation from the interfacial surface, it is necessary to take into account the presence of formed droplets in the vapor phase and the thermal effect of condensation on vapor parameters.

intense evaporation, Boltzmann kinetic equation, bulk condensation, condensation aerosol.

Численное моделирование объемной конденсации пара вблизи межфазной поверхности при интенсивном испарении

Результаты численного решения кинетического уравнения Больцмана для интенсивного испарения с межфазной поверхности были использованы для расчета кинетики процесса объемной конденсации вблизи поверхности испарения. Показано, что за время существования пересыщенного состояния, предсказываемого на основе решения без учета конденсации, конденсационный аэрозоль успевает сформироваться. При анализе испарения с межфазной поверхности необходимо учитывать наличие образовавшихся капель в паровой фазе и тепловое воздействие конденсации на параметры пара.

интенсивное испарение, кинетическое уравнение Больцмана, объемная конденсация, конденсационный аэрозоль

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