缠绕管式固定床反应器压降模拟与实验研究OA北大核心CSTPCD
Simulation and experiment of pressure drop in tube-wound fixed-bed reactor
针对装填不同形状颗粒的缠绕管式固定床反应器,建立颗粒床层的物理模型,通过CFD-DEM(计算流体力学-离散元法)耦合模拟的方法,探究颗粒形状和缠绕管结构参数对床层空隙率、流体分布的影响,利用缠绕管式固定床反应器实验台对高雷诺数单相流动状态下的压降进行精确测量.结果表明:缠绕管螺距、层间距越小,床层空隙率越大,管径的变化对空隙率几乎没有影响.球形颗粒床层的流场分布差异较大,圆柱、棱柱颗粒床层流体分布均匀性依次改善.球形颗粒的CFD-DEM耦合模拟结…查看全部>>
The physical model of the particle bed was established based on a tube-wound fixed-bed reactor filled with particles of different shapes,and the effects of particle shape and structural parameters of the twisted tube on the bed void fraction and fluid distribution were investigated by means of CFD-DEM coupled simulation.The pressure drop in single-phase flow with high Reynolds number was measured accurately using the experimental bench of the tube-woun…查看全部>>
牛硕磊;代玉强;张伟健;徐琴琴
大连理工大学 化工学院,辽宁 大连 116000大连理工大学 化工学院,辽宁 大连 116000大连理工大学 化工学院,辽宁 大连 116000大连理工大学 化工学院,辽宁 大连 116000
化学工程
缠绕管式固定床反应器填充床空隙率数值模拟压降
tube-wound fixed-bed reactorpacked bedvoid fractionnumerical simulationpressure drop
《化学工程》 2024 (8)
49-54,6
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