Characterising porosity of multi-component mixtures in rotary mills

Sichalwe, K.; Govender, I.; Mainza, A.N.

doi:10.1016/j.mineng.2010.08.027

Cited by 6 publications

(3 citation statements)

References 45 publications

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“…Subsequently, PEPT has also been successfully used to non-invasively recover the Lagrangian trajectories of a radio-labelled particle in rotating drums by Ding et al (2001a), Ding et al (2001b) Ding et al (2002, Lim et al (2003), Govender et al (2011), and Sichalwe et al (2011).…”

Section: The Experimental Study Of Granular Motion In Rotating Drumsmentioning

confidence: 99%

The shape and behaviour of a granular bed in a rotating drum using Eulerian flow fields obtained from PEPT

Morrison

Govender

Mainza

et al. 2016

Chemical Engineering Science

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Section: The Experimental Study Of Granular Motion In Rotating Drumsmentioning

confidence: 99%

The shape and behaviour of a granular bed in a rotating drum using Eulerian flow fields obtained from PEPT

Morrison

Govender

Mainza

et al. 2016

Chemical Engineering Science

Self Cite

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“…The residence time distribution (RTD) approach for computing the time‐averaged velocity was previously developed for PEPT data in vibro‐fluidized beds and later adapted to tumbling mills . We adopt the procedures outline in Sichalwe et al to recover the velocity field and volume concentration maps presented in the Results section.…”

Section: Positron Emission Particle Trackingmentioning

confidence: 99%

(W = 285 mm)

is longer than the axial FoV

(230 mm)

, the analysis scheme identifies when the tracer has left the axial FoV by looking for time steps that are much larger than the average time step between data points.…”

Section: Positron Emission Particle Trackingmentioning

confidence: 99%

A positron emission particle tracking investigation of the scaling law governing free surface flows in tumbling mills

et al. 2016

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Positron Emission Particle Tracking (PEPT) measurements are used to track the flow of d=5 mm glass beads within a rotating drum fitted with (and without) lifter bars and operated in the cascading and cataracting Froude regimes. After converting the Lagrangian trajectories of a representative radio‐labeled glass bead (the tracer) into Eulerian fields under the ergodic assumption, the bed shape and kinematics are extracted for steady, fully developed flow conditions. Notwithstanding the azimuthal wall effects introduced by the lifter bars, we show a linear scaling 〈v〉∝h of the local flowing layer thickness (h) with local depth‐averaged velocity 〈v〉 and a constant average shear 〈trueγ̇〉∼0.6gd for direct measurements spanning the entire flowing layer (not just the central region), and high Froude regimes (cascading and cataracting) not previously investigated by scaling analysis in the literature. © 2016 American Institute of Chemical Engineers AIChE J, 63: 903–913, 2017

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Geometric features of tumbling mill flows: A positron emission particle tracking investigation

Klerk

Govender

Mainza

2019

Chemical Engineering Science

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Characterising porosity of multi-component mixtures in rotary mills

Cited by 6 publications

References 45 publications

The shape and behaviour of a granular bed in a rotating drum using Eulerian flow fields obtained from PEPT

The shape and behaviour of a granular bed in a rotating drum using Eulerian flow fields obtained from PEPT

A positron emission particle tracking investigation of the scaling law governing free surface flows in tumbling mills

Geometric features of tumbling mill flows: A positron emission particle tracking investigation

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