Spatial filtering velocimetry for surface velocity measurement of granular flow

被引：15
|
作者：
Gong, J. M. [1 ]
Yang, H. [1 ,2 ]
Lin, S. H. [1 ]
Li, R. [1 ]
Zivkovic, V. [3 ]
机构：
[1] Univ Shanghai Sci & Technol, Sch Opt Elect & Comp Engn, Shanghai 200093, Peoples R China
[2] Univ Shanghai Sci & Technol, Shanghai Key Lab Modern Opt Syst, Shanghai 200093, Peoples R China
[3] Newcastle Univ, Sch Chem Engn & Adv Mat, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England
来源：
POWDER TECHNOLOGY | 2018年 / 324卷
基金：
中国国家自然科学基金;
关键词：
Spatial filtering velocimetry; Surface velocity measurement; Granular flow; Irregular particle; PARTICLE IMAGE VELOCIMETRY; DYNAMICS; LAYER;
D O I：
10.1016/j.powtec.2017.10.041
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In this study, we develop the spatial filtering velocimetry (SFV) technique to measure the velocity distribution of small spherical and irregular particle flows using a linear CCD camera. In addition, energy barycentre correction algorithm is used to enhance the measurement accuracy. A constantly running conveyor belt is used to test the accuracy of this SW system. Furthermore, the velocity distributions of the spherical and irregular particle flows in a rotating drum are measured to demonstrate the usability of this method in a granular system. We further discuss the effect of the key system parameters on the results of the measurement, and the optimal thresholds of the parameters are given in this paper. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：76 / 84
页数：9
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