Journal
PHYSICAL REVIEW E
Volume 96, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.96.062910
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Funding
- Engineering and Physical Sciences Research Council [EP/L003651/1]
- EPSRC
- Royal Society University Research Fellowship
- Engineering and Physical Sciences Research Council [EP/L003651/1] Funding Source: researchfish
- EPSRC [EP/L003651/1] Funding Source: UKRI
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The effect of a confining boundary on the spatial variations in granular temperature of a driven quasi-two-dimensional layer of particles is investigated experimentally. The radial drop in the relative granular temperature Lambda T/T exhibits a maximum at intermediate particle numbers which coincides with a crossover from kinetic to collisional transport of energy. It is also found that at low particle numbers, the distributions of radial velocities are increasingly asymmetric as one approaches the boundary. The radial and tangential granular temperatures split, and in the tails of the radial velocity distribution there is a higher population of fast moving particles traveling away rather than towards the boundary.
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