Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/73090
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Type: | Journal article |
Title: | PTV measurement of drag coefficient of fibrous particles with large aspect ratio |
Author: | Qi, G. Nathan, G. Kelso, R. |
Citation: | Powder Technology, 2012; 229:261-269 |
Publisher: | Elsevier Science Sa |
Issue Date: | 2012 |
ISSN: | 0032-5910 1873-328X |
Statement of Responsibility: | Guo Q. Qi, Graham J. Nathan, Richard M. Kelso |
Abstract: | The aerodynamic behaviour of long aspect ratio nylon fibrous particles has been investigated experimentally while settling in air under super dilute conditions without any influence of secondary flows and at fibre Reynolds numbers of 0.5-2 based on fibre diameter. A method for laser-based measurement of the orientations and velocities of fibrous particles is also presented. The experimental apparatus employs a two-dimensional Particle Tracking Velocimetry (PTV) to calculate orientation and velocity based on the two end-points. The controlling length scale in the relationship between Reynolds number and drag coefficient was investigated and the equivalent diameter of settling fibre in air was reported. Finally the influence of volume fraction and fibre straightness were assessed. © 2012. |
Keywords: | Sedimentation Aerodynamics PTV Fibrous particle Drag coefficient |
Rights: | Crown copyright © 2012 |
DOI: | 10.1016/j.powtec.2012.06.049 |
Published version: | http://dx.doi.org/10.1016/j.powtec.2012.06.049 |
Appears in Collections: | Aurora harvest Environment Institute Leaders publications Mechanical Engineering publications |
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hdl_73090.pdf | Accepted version | 946.15 kB | Adobe PDF | View/Open |
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