Segregation of Granular Mixtures in a Rotating Drum
Sanjay Puri, Hisao Hayakawa
TL;DR
This paper presents a phenomenological model that captures various segregation behaviors of granular mixtures in a rotating drum, including radial and axial segregation patterns, supported by analytical and numerical results.
Contribution
The study introduces a new phenomenological model that accurately replicates experimental segregation phenomena in granular mixtures within rotating drums.
Findings
Model reproduces rapid radial segregation
Model captures slow axial segregation
Model explains nonuniform radial structure of axial bands
Abstract
We formulate a phenomenological model for the segregation of binary mixtures of rough and smooth granular materials in a rotating drum. Our model successfully replicates a range of experimental behaviours, e.g., rapid radial segregation; slow axial segregation; and nonuniform radial structure of axial bands. We present some analytical results and detailed numerical results for our model.
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Taxonomy
TopicsGranular flow and fluidized beds · Landslides and related hazards · Mineral Processing and Grinding