Design method of a vertical screw conveyor based on Taylor–Couette–Poiseuille stable helical vortex
Design method of a vertical screw conveyor based on Taylor–Couette–Poiseuille stable helical vortex
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DOI：
10.1177/1687814017714984
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发表时间：
2017-07
影响因子：
2.1
通讯作者：
Sun Xiaoxia;Meng Wenjun;Yuanming Yuan
中科院分区：
文献类型：
--
作者：
Sun Xiaoxia;Meng Wenjun;Yuanming Yuan
研究了垂直螺旋输送机内气固两相流动，分析了颗粒圆周速度在径向上的分布函数。通过理论分析结合EDEM+FLUENT模拟分析，确定了立式螺旋输送机内形成Taylor-Couette-Poiffille流稳定螺旋涡时的最佳填充率、最佳螺杆转速和临界雷诺数。确定了不同摩擦系数下的临界雷诺数和最佳通过量的计算公式，建立了基于Taylor-Couette-Poietille稳定螺旋涡流动的高效设计方法。该方法对垂直螺旋输送机的设计有很大的参考价值。
This article investigates gas–solid two-phase flow in a vertical screw conveyor and analyzes the distribution function of the circumferential velocity of particles in the radial direction. Theoretical analysis combined with EDEM+FLUENT simulation analysis is performed to determine the best fill rate, the best screw speed, and critical Reynolds number when Taylor–Couette–Poiseuille flow stable helical vortex forms in the vertical screw conveyor. The formula for the critical Reynolds number and the best throughput is determined under different friction coefficients to establish an efficient design method based on Taylor–Couette–Poiseuille stable helical vortex flow. The method greatly benefits the design of vertical screw conveyors.