飞转鼓内三维颗粒流动的研究

Lanyue Zhang, F. Weigler, Zhaochen Jiang, Vesselin V. Idakiev, L. Mörl, J. Mellmann, E. Tsotsas
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引用次数: 2

摘要

为了验证颗粒在飞行旋转鼓(FRD)中的运动,建立了实验室FRD,并在15%填充度和10 rpm转速下使用塑料球作为床层材料。采用颗粒跟踪测速(PTV)和磁颗粒跟踪(MPT)技术研究了颗粒的流动行为。采用离散元法(DEM)对三维粒子流进行建模。利用PTV和DEM数据,计算了所有粒子的质心高度和粒子的瞬时速度。比较了MPT实验和DEM模拟得到的三维时均粒子速度分布。关键词:飞行转鼓;粒子运动;粒子跟踪测速;磁粉跟踪;DEM模拟。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Investigation of 3D particle flow in a flighted rotating drum
To validate the particle motion in flighted rotating drum (FRD), a laboratory FRD was built and operated at 15% filling degree and 10 rpm rotation speed using plastic balls as bed material. The particle tracking velocimetry (PTV) and magnetic particle tracking (MPT) techniques were applied to investigate the particle flow behavior. The 3D particle flow was modeled by Discrete Element Method (DEM) with LIGGGHTS. The height of the barycenter of all overall particles and particle instantaneous velocity were calculated from PTV and DEM data. The 3D time-averaged particle velocity distributions obtained from MPT experiment and DEM simulation were compared.Keywords: flighted rotating drum; particle motion; particle tracking velocimetry; magnetic particle tracking; DEM simulation.
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