摘要：采用激光动态光散射测量技术 ,通过 (氢气十铬 ) /空气扩散火焰研究了含铬废物燃烧过程中Cr2 O3 的气溶胶颗粒尺寸。通过求解轴对称形式的Navier -Stokes方程 ,计算出流场、温度场和组分 (包括颗粒 )浓度 ,采用离散分区模型对Cr2 O3 气溶胶颗粒进行了数值模拟。

关键词：铬;气溶胶颗粒;光散射技术;离散分区模型;

Abstract：By using the experimental measurement meohod of dynamie light scattering，a hydrogen／air diffusion flame is enployed in studying the particle size of Cr₂O₃ aerosol during the combustion disposal of chromium waste．T he flow field，temperature field and concenrtation of component are calculated by solving the Navier-Stokes equation which is axisymmetric．A discrete － sectional model is adopted to simulate the Cr₂O₃aerosol behavior． 

Key words： chromium；aerosol；dynamic light scattering；dis crete－sectional model