摘要
在D300mm喷嘴式分布器射流流化床上利用双流体模型结合颗粒动力学理论对空隙率分布进行了模拟计算。模拟结果与实验结果吻合较好。在此基础上运用该模型预测了不同喷嘴仰角对床内空隙率分布的影响规律。预测结果表明,喷嘴仰角改变将会影响床层空隙率。
In a D300?mm jetting fluidized bed with a three-nozzle distributor, the voidage distribution was simulated by two fluid model combined with kinetic theory of granular flow. It was found that the simulating results were in good agreement with the experimental data. Based on the model, the effects of various elevation angles on the voidage distribution in the fluidized bed were discussed. The results showed that the change of nozzle elevation angles would influence the voidage distribution in the fluidized bed.
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
2004年第2期205-209,共5页
Journal of Fuel Chemistry and Technology
基金
国家重点基础研究发展规划项目(G1999022103)
中国科学院知识创新工程重要方向项目(KGCXZ SW 308)~~
关键词
喷嘴式分布器
射流流化床
双流体模型
空隙率分布
multi-nozzle distributor
jetting fluidized bed
two fluid model
voidage distribution
