摘要
本文提出了一个新的气-固多相湍流运动的模型(脉动频谱随机颗粒轨道模型),它计及了湍流涡团对颗粒扩散作用,并通过体平均方法求出颗粒的速度场和浓度场。同时建立了气-固多相射流试验台,采用激光衍射仪、高速变色频闪摄影法等对气-固多相同轴射流进行了实验研究。实验和上述模型模拟的结果吻合较好。
In this paper,numerical solutions for gas-particle multiphase co-axial jets with the Fluctuation-Spectrum-Random-Trajectory model,by taking into consi- deration thoroughly the effect of different particle sizes on turbulent diffusion, is presented.The particle velocity and concentration field were obtained by a volume-average method.Also,we set up a gas-particle multiphase flow experimental set to test and verify the model.The gas-particle coaxial jet was examined by the LDM and the color-changeable high speed stroboscopic photographic system.The computation results appeared to correlate well with the experimental data.
出处
《化学反应工程与工艺》
EI
CAS
CSCD
北大核心
1989年第3期26-35,共10页
Chemical Reaction Engineering and Technology
基金
国家青年自然科学基金
