Surface velocity measurement in a high shear mixer
Surface velocity measurement in a high shear mixer
复制标题
高剪切混合器中的表面速度测量
DOI：
10.1016/j.ces.2005.10.018
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发表时间：
2006
影响因子：
4.7
通讯作者：
M. Hounslow
中科院分区：
文献类型：
--
作者：
Amol M. Nilpawar;G. Reynolds;A. Salman;M. Hounslow
近年来，高剪切造粒系统中的颗粒速度测量一直是人们感兴趣的领域。本文深入探讨了配备三叶片叶轮的高剪切混合器 (HSM) 中整体运动的系统变化。使用高速相机和粒子图像测速（PIV）软件测量速度。速度数据的傅立叶分析显示出非常规则的速度变化模式，很大程度上取决于叶轮频率。还研究了粘合剂粘度对总体流动的影响。通过这些实验，可以定量地表征平均表面流量和运动的波动。
Particle velocity measurement in high shear granulation systems has been an area of interest in recent years. This paper gives an insight into the systemic variation of the bulk motion in a high shear mixer (HSM) equipped with a three-blade impeller. The velocities are measured using a high speed camera and particle image velocimetry (PIV) software. Fourier analysis of the velocity data shows a very regular pattern of velocity variation largely dependent on the impeller frequency. The effect of binder viscosity on the bulk flow is investigated as well. From these experiments it was possible to characterize, quantitatively, both the mean surface flow, and the fluctuations in this motion.