Measuring jumps during granular chute-flows using X-ray radiography

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Abstract

The present paper describes laboratory tests on steady granular flows down a smooth chute using X-ray radiography. By using an original granular chute set-up with a gate at its end, standing discontinuites in height, velocity and density, namely jumps, were produced during the granular flows. The X-ray radiography was successful to get consistent measurements of the free-surface and density profiles of the flows along the chute under different flow states: the (nearly) uniform flows before the jumps, the gradually-varied flows after the jumps, and the highly non-uniform flows across the jumps. This demonstrates the efficiency of the X-ray radiography to measure granular flows.

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APA

Méjean, S., Guillard, F., Faug, T., & Einav, I. (2021). Measuring jumps during granular chute-flows using X-ray radiography. In Powders and Grains 2021 - 9th International Conference on Micromechanics on Granular Media. EDP Sciences. https://doi.org/10.1051/epjconf/202124903031

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