T型突变出口提升管气固流动的数值模拟研究

工程热物理学报 , 2009, 30(8): 1327-1330.

1.中国科学院先进能源动力重点实验室,工程热物理研究所,北京,100190

2.中国科学院先进能源动力重点实验室,工程热物理研究所,北京,100190

3.中国科学院先进能源动力重点实验室,工程热物理研究所,北京,100190

4.中国科学院先进能源动力重点实验室,工程热物理研究所,北京,100190

5.中国科学院先进能源动力重点实验室,工程热物理研究所,北京,100190

基金项目: 国家高技术研究发展计划(863计划)(2006AA05A103)

THE NUMERICAL INVESTIGATION OF GAS-SOLID FLOW IN A RISER WITH A T-ABRUPT EXIT

循环流化床提升管内气固流动不仅受操作工况的影响,还与出口结构密切相关.本文应用双流体模型结合EMMS曳力模型,对T型突变出口提升管内两种工况的气固流动进行了二维模拟.模拟得到的轴向固体浓度分布和实验值符合较好.验证了EMMS曳力模型对于快速流态化气固不均匀流动模拟的适用性.

[1]	Mabrouk R;Chaouki J;Guy C .Exit Effect on Hydrodynamics of the Internal Circulating Fluidized Bed Riser[J].Powder Technology,2007,182(03):406-414.
[2]	Senior R C;Brereton C .Modelling of Circulating Fluidized-Bed Solids Flow and Distribution[J].Chemical Engineering Science,1992,47(02):281 296.
[3]	Wilde J D;Guy B M;Geraldine J et al.The Effects of Abrupt T-Outlets in a Riser:3D Simulation Using the Kinetic Theory of Granular Flow[J].Chemical Engineering Science,58(3-6):877-885.
[4]	Qi HY;Li F;Xi B;You CF .Modeling of drag with the Eulerian approach and EMMS theory for heterogeneous dense gas-solid two-phase flow[J].Chemical Engineering Science,2007(6):1670-1681.
[5]	Wang JW;Ge W;Li JH .Eulerian simulation of heterogeneous gas-solid flows in CFB risers: EMMS-based sub-grid scale model with a revised cluster description[J].Chemical Engineering Science,2008(6):1553-1571.
[6]	Enwald H;Peirano E;Almstedt A E .Eulerian Two-Phase Flow Theory Applied to Fluidization[J].International Journal of Multiphase Flow,1996,22(Supp 1):21-66.

上一张下一张

计量

作者相关

文章评分