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Improved spatial filtering velocimetry and its application in granular flow measurement

Lookup NU author(s): Dr Vladimir Zivkovic

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This is the authors' accepted manuscript of an article that has been published in its final definitive form by IOP Press, 2020.

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Abstract

Spatial Filtering Velocimetry (SFV) has the advantages of simple structure, good stability and wide application. 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 filed 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 condition by using this improved technique.


Publication metadata

Author(s): Kong P, Wang BD, Wang P, Zivkovic V, Zhang JQ

Publication type: Article

Publication status: Published

Journal: Chinese Physics B

Year: 2020

Pages: epub ahead of print

Online publication date: 18/04/2020

Acceptance date: 18/04/2020

Date deposited: 30/06/2020

ISSN (electronic): 1674-1056

Publisher: IOP Press

URL: https://doi.org/10.1088/1674-1056/ab8ac2

DOI: 10.1088/1674-1056/ab8ac2


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