Improved multiple‐particle tracking for studying flows in multiphase systems
Improved multiple‐particle tracking for studying flows in multiphase systems
复制标题
改进的多粒子跟踪用于研究多相系统中的流动
DOI：
10.1002/aic.11224
复制
发表时间：
2007
期刊：
影响因子：
3.7
通讯作者：
S. Bakalis
中科院分区：
文献类型：
--
作者：
Z. Yang;X. Fan;P. Fryer;D. Parker;S. Bakalis
正电子发射粒子跟踪是一种强大的非侵入性技术，已成功应用于广泛的基础研究和工业应用。然而，它只能跟踪单个追踪器。本文介绍了一种用于跟踪不透明系统中两个自由移动粒子的多正电子发射粒子跟踪技术及其应用。所开发的技术已通过分别跟踪两个静止粒子和两个移动粒子得到验证。结果表明，这是一种可靠的技术，可用于获取更多的比较信息，例如多相系统中不同尺寸、密度和材料纹理的颗粒的相互作用和相对运动。已给出在圆柱形流化床中跟踪使用 18F 标记的两个聚乙烯颗粒的示例。获得的信息为流动和混合过程中的现象提供了重要的见解。 © 2007 美国化学工程师学会 AIChE J，2007
Positron Emission Particle Tracking is a powerful and noninvasive technique and has been successfully used in a wide range of fundamental research and industrial applications. However, it is only capable of following a single tracer. This article presents a Multiple-Positron Emission Particle Tracking technique for tracking two freely moving particles in opaque systems and its application. The developed technique has been validated through tracking two stationary particles and two moving particles, respectively. The results showed that it is a reliable technique and can be potentially used to acquire more comparative information, such as the interactions and relative motions of particles with different sizes, densities, and material textures in multiphase systems. Tracking two polyethylene particles, labeled using 18F, in a cylindrical fluidized bed has been given as an example. The information obtained provides significant insights into phenomena in flow and mixing processes. © 2007 American Institute of Chemical Engineers AIChE J, 2007