Experimental investigation of axial dispersion in a horizontal rotating cylinder
Open access
Date
2015Type
- Journal Article
ETH Bibliography
yes
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Abstract
This work reports experimental measurements of the dispersion of particles during rotation in a horizontal cylinder. The axial dispersion of a pulse of approximately monodisperse black glass ballotini into a bed of clear glass ballotini of the same size is analysed. This is done using a sectioning technique, where the concentration is determined throughout the cylinder for a given rotation time and speed. The concentration profile is fitted to an appropriate solution of Fick’s second law to determine the dispersion coefficient. The dispersion coefficient is compared for various drum rotation rates and glass ballotini sizes. The cylinder was filled to 35 % by volume and rotated at a range of speeds between 5 and 20 rpm. The particle sizes vary from 1.14 to 3.15 mm. The dispersion coefficient was found to be dependent on both particle size and rotation speed. As the rotation speed, Show more
Permanent link
https://doi.org/10.3929/ethz-b-000099394Publication status
publishedExternal links
Journal / series
Granular MatterVolume
Pages / Article No.
Publisher
SpringerSubject
Axial dispersion; Rotating cylinders; Kiln; Diffusion; Drums; Segregation; FlowOrganisational unit
03865 - Müller, Christoph R. / Müller, Christoph R.
Notes
It was possible to publish this article open access thanks to a Swiss National Licence with the publisher.More
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ETH Bibliography
yes
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