On the interplay of chemical and physical processes during the combustion of aluminum in water vapor

摘要

A model is considered, and the results of numerical calculations of the dynamics of the combustion of pre-prepared gas mixtures of Al and H2O under adiabatic conditions are presented. The formation of the condensed phase is modeled taking into account the homogeneous nucleation of Al2O3 molecules and the processes of condensation, evaporation, and coagulation. The time dependences of the gas composition of the system, the concentration of aerosol particles, and their size distribution during the process are simulated. Details of the mechanism of the interplay of the gas-phase reactions and the formation of aerosol particles during aluminum combustion are discussed.