Abstract In the present study, a three-dimensional computational fluid dynamics (CFD) simulation is carried out to investigate the gas-solid fluidization behavior and heat transfer characteristics in a rotating solid-bed with static geometry (RFB-SG) without slits. With a static geometry adit as the research objective, this paper makes use of the Eulerian–Eulerian approach to carry out numerical simulations in ANSYS FLUENT 14.5 software. The prediction of particle fluidization capacity and its behavior in the developed reactor has been analyzed, using appropriate parameters and simulation analysis. The results illustrated that the main factors, such as air inlet velocity, inlet pressure, temperature, and heat transfer coefficient, affected the reactor capacity. It is observed that for a solid inventory of 300 g, a well-stabled solid-bed has been obtained at an air velocity of 22 m s−1. On enhancing the inlet air velocity up to 33 m s-1, not only the fluidization capacity of the reactor is increased by 500 g but also the drying efficiency is found to be increased. On validating numerical results with experimental findings, the maximum error of temperature is found to be 6.98%.

中文翻译：

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静态几何干燥器旋转流化床气固流体力学及传热数值研究

摘要 在本研究中，进行了三维计算流体动力学 (CFD) 模拟，以研究无狭缝静态几何旋转固体床 (RFB-SG) 中的气固流化行为和传热特性。本文以静态几何学为研究目标，利用欧拉-欧拉方法在ANSYS FLUENT 14.5软件中进行数值模拟。使用适当的参数和模拟分析，对已开发反应器中颗粒流化能力及其行为的预测进行了分析。结果表明，影响反应器容量的主要因素有空气入口速度、入口压力、温度和传热系数。据观察，对于 300 g 的固体库存，在 22 m s-1 的空气速度下获得了稳定的固体床。当进气速度提高到 33 m s-1 时，不仅反应器的流化能力增加了 500 g，而且干燥效率也提高了。在用实验结果验证数值结果时，发现温度的最大误差为 6.98%。