中国物理B ›› 2020, Vol. 29 ›› Issue (7): 74201-074201.doi: 10.1088/1674-1056/ab8ac2

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Improved spatial filtering velocimetry and its application in granular flow measurement

Ping Kong(孔平), Bi-De Wang(王必得), Peng Wang(王蓬), Zivkovic V, Jian-Qing Zhang(张建青)   

  1. 1 Shanghai Key Laboratory for Molecular Imaging, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China;
    2 School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;
    3 School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;
    4 School of Chemical Engineering and Advanced Materials, Newcastle University, NE1 7RU, United Kingdom;
    5 College of Medical Imaging, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
  • 收稿日期:2020-02-26 修回日期:2020-03-17 出版日期:2020-07-05 发布日期:2020-07-05
  • 通讯作者: Jian-Qing Zhang E-mail:zhangjq@sumhs.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11902190), the Construction Project of Shanghai Key Laboratory of Molecular Imaging (Grant No. 18DZ2260400), and the Fund from the Shanghai Municipal Education Commission, China (Class II Plateau Disciplinary Construction Program of Medical Technology of SUMHS, 2018-2020).

Improved spatial filtering velocimetry and its application in granular flow measurement

Ping Kong(孔平)1, Bi-De Wang(王必得)2, Peng Wang(王蓬)3,1, Zivkovic V4, Jian-Qing Zhang(张建青)5   

  1. 1 Shanghai Key Laboratory for Molecular Imaging, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China;
    2 School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;
    3 School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;
    4 School of Chemical Engineering and Advanced Materials, Newcastle University, NE1 7RU, United Kingdom;
    5 College of Medical Imaging, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
  • Received:2020-02-26 Revised:2020-03-17 Online:2020-07-05 Published:2020-07-05
  • Contact: Jian-Qing Zhang E-mail:zhangjq@sumhs.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11902190), the Construction Project of Shanghai Key Laboratory of Molecular Imaging (Grant No. 18DZ2260400), and the Fund from the Shanghai Municipal Education Commission, China (Class II Plateau Disciplinary Construction Program of Medical Technology of SUMHS, 2018-2020).

摘要: Spatial filtering velocimetry (SFV) has the advantages of simple structure, good stability, and wide applications. However, the traditional linear CCD-based SFV method requires an accurate angle between the direction of linear CCD and the direction of moving object, so it is not suitable for measuring a complex flow field or two-dimensional speed in a granular media. In this paper, a new extension of spatial filtering method (SFM) based on high speed array CCD camera is proposed as simple and effective technique for measuring two-dimensional speed field of granular media. In particular, we analyzed the resolution and range of array CCD-based SFV so that the reader can clarify the application scene of this method. This method has a particular advantage for using orthogonal measurement to avoid the angle measurement, which were problematic when using linear CCD to measure the movement. Finally, the end-wall effects of the granular flow in rotating drum is studied with different experimental conditions by using this improved technique.

关键词: spatial filtering velocimetry, array CCD, end-wall effects, resolution

Abstract: Spatial filtering velocimetry (SFV) has the advantages of simple structure, good stability, and wide applications. However, the traditional linear CCD-based SFV method requires an accurate angle between the direction of linear CCD and the direction of moving object, so it is not suitable for measuring a complex flow field or two-dimensional speed in a granular media. In this paper, a new extension of spatial filtering method (SFM) based on high speed array CCD camera is proposed as simple and effective technique for measuring two-dimensional speed field of granular media. In particular, we analyzed the resolution and range of array CCD-based SFV so that the reader can clarify the application scene of this method. This method has a particular advantage for using orthogonal measurement to avoid the angle measurement, which were problematic when using linear CCD to measure the movement. Finally, the end-wall effects of the granular flow in rotating drum is studied with different experimental conditions by using this improved technique.

Key words: spatial filtering velocimetry, array CCD, end-wall effects, resolution

中图分类号:  (Imaging and optical processing)

  • 42.30.-d
47.11.-j (Computational methods in fluid dynamics) 47.57.Gc (Granular flow)