Numerical Simulation for Nanoparticle Growth in Flame Reactor and Control of Nanoparticles

摘要

We review the models and numerical methods used in flame reactor for the modeling and simulation of nanoparticle. And we also review the control of nanoparticle size distribution, some nonlinear control strategies were looked into. A general model in which nanoparticles form in gas phase and grow through chemical reaction, nucleation, condensation and coagulation is discussed. Particles dispersed in a fluid move randomly, due to Brownian motion, and, along their trajectories, they collide with each other. The model is formulated in terms of a detailed population balance which describes how aerosol size distribution evolves with time. For this population balance model, a number of different numerical approaches exist. We reviewed sectional, finite element and Monte Carlo methods, method of moments.