CFD study of flow dynamics in a blade free planetary mixer (BFPM) - A qualitative flow study
CFD study of flow dynamics in a blade free planetary mixer (BFPM) - A qualitative flow study
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DOI：
10.1016/j.cherd.2015.05.045
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发表时间：
2015-10-01
影响因子：
3.9
通讯作者：
Dufresne, Louis
中科院分区：
文献类型：
--
作者：
Cherguia, Nacera;Lateb, Mohamed;Dufresne, Louis
对无叶片行星式混合器内的流动特性进行了数值研究。在旋转参考系中模拟流动。分析的重点是从固体旋转到一个更复杂的三维流动结构的出发点。数值计算实现了使用二阶有限体积离散。研究的参数是颗粒轨迹、速度等值线和流线。结果表明，流动总体上是旋转的，在不同的特定平面上存在奇点。旋涡结构呈螺旋状，其大小、形状和旋转轴与转速有关。此外，在某些转速下，流动的动态特性会发生显著变化。(C)2015化学工程师学会。Elsevier B.V.出版，保留所有权利。
A numerical study is conducted to analyse the flow dynamics in a blade free planetary mixer (BFPM). The flow is simulated in the revolution reference frame. The analysis is focused on the departure from solid body rotation to a more complex 3D flow structure. Numerical calculations are realised using second order finite volume discretisation. The parameters investigated are the particle trajectories, velocity contours and streamlines. The results show that the flow is generally swirling with the presence of singular points on different specific planes. The vortical structures are found to be in spiral forms and their sizes, shapes, and rotation axes are dependent on the revolution rate. In addition, the dynamics of the flow is subject to significant changes at certain revolution rates. (C) 2015 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.