Magnetic particle tracking for nonspherical particles in a cylindrical fluidized bed.
Magnetic particle tracking for nonspherical particles in a cylindrical fluidized bed.
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DOI：
10.1002/aic.15854
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发表时间：
2017-12
期刊：
影响因子：
--
通讯作者：
Padding JT
中科院分区：
文献类型：
--
作者：
Buist KA;Jayaprakash P;Kuipers JAM;Deen NG;Padding JT
在颗粒流操作中，颗粒通常是非球形的。这激发了大量了解这些粒子行为的研究。人们正在开发各种模型来研究涉及非球形颗粒的流体动力学。然而，实验通常仅限于仅获取有关平移运动的数据。本文重点介绍磁粒子跟踪的独特功能，用于跟踪全 3D 圆柱形流化床中标记的方向。具有相同体积和不同长径比的不锈钢颗粒在一定范围的表观气体速度下流化。球形和棒状颗粒表现出明显不同的流化行为。此外，棒状颗粒的角度分布随流化床中的位置以及空塔速度而变化。磁粒子跟踪显示了其研究粒子空间分布和方向的独特能力，可以更深入地验证离散粒子模型。 © 2017 作者 AIChE 期刊由 Wiley periodicals, Inc. 代表美国化学工程师学会出版 AIChE J, 63: 5335–5342, 2017
In granular flow operations, often particles are nonspherical. This has inspired a vast amount of research in understanding the behavior of these particles. Various models are being developed to study the hydrodynamics involving nonspherical particles. Experiments however are often limited to obtain data on the translational motion only. This paper focusses on the unique capability of Magnetic Particle Tracking to track the orientation of a marker in a full 3‐D cylindrical fluidized bed. Stainless steel particles with the same volume and different aspect ratios are fluidized at a range of superficial gas velocities. Spherical and rod‐like particles show distinctly different fluidization behavior. Also, the distribution of angles for rod‐like particles changes with position in the fluidized bed as well as with the superficial velocity. Magnetic Particle Tracking shows its unique capability to study both spatial distribution and orientation of the particles allowing more in‐depth validation of Discrete Particle Models. © 2017 The Authors AIChE Journal published by Wiley Periodicals, Inc. on behalf of American Institute of Chemical Engineers AIChE J, 63: 5335–5342, 2017
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