Abstract This work is devoted to a numerical study of inflow swirl on the flow field in a spouted bed. The Eulerian-Eulerian multiphase model was used to simulate the hydrodynamics of a gas-solid flow in a 2D axisymmetric spouted bed under an unsteady laminar regime. The results of the simulations are validated with the experimental data obtained by He et al. (Can. J. Chem. Eng. Vol. 72, pp. 229–234 and pp. 561–568, 1994). The comparison of the results shows that the numerically obtained profiles of the time-averaged axial solid velocity agree well with the experimentally measured values. The results of the simulations revealed that the slightly increase in the swirling ratio of the inlet flow leads to an enhanced spouting process, while a strong swirling ratio has an adverse effect on the mixing between gas and solid particles. Thus, the use of the inflow swirl enables control of dynamics of spouted beds.

中文翻译：

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旋流对喷射床动力学的影响

摘要 这项工作致力于对喷射床流场上的流入涡流进行数值研究。欧拉-欧拉多相模型用于模拟非定常层流状态下二维轴对称喷射床中气固流的流体动力学。模拟结果得到了 He 等人获得的实验数据的验证。（Can. J. Chem. Eng. Vol. 72, pp. 229–234 and pp. 561–568, 1994）。结果的比较表明，数值获得的时均轴向固体速度分布与实验测量值吻合良好。模拟结果表明，入口流旋流比的略微增加导致喷射过程增强，而强旋流比对气体和固体颗粒之间的混合产生不利影响。因此，