Abstract
In this paper we derive and test an extended mass-flow type stochastic particle algorithm for simulating the growth of nanoparticles that are formed in flames and reactors. The algorithm incorporates the effects of coagulation that dominates such systems, along with a particle source and surface growth. We simulate three different configurations for the creation of nanoparticles. The oxidation of SiH 4 to SiO 2 and Fe(CO) 5 to Fe 2O 3 in premixed H 2/O 2/Ar flames were investigated under different initial concentrations of SiH 4 and Fe(CO) 5, respectively. In addition, the oxidation of TiCl 4 to TiO 2 in a plug-flow reactor was investigated. A simple reaction mechanism for the conversion of Fe(CO) 5 to Fe 2O 3 was suggested, based on prior experimental data along with estimated transport properties for the species considered in this system. The simulation results were compared to experimental data available in the literature.
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