Temperature measurement in the convective and segregated vibrated bed of powder : A numerical study

Details Temperature measurement in the convective and segregated vibrated bed of powder : A numerical study Temperature measurement in the convective and segregated vibrated bed of powder : A numerical study

2004-04-07

arxiv.org/abs/nlin/0404015v2

Granular Matter, Vol. 8, No.1, (2006) pp.27 - 33.

Nonlinear Sciences

Pattern Formation and Solitons

Granular Matter, in press (Revised for the publication)

Scientific paper

10.1007/s10035-005-0215-0

In numerically simulated vibrated beds of powder, we measure temperature under convection by the generalized Einstein's relation. The spatial temperature distribution turns out to be quite uniform except for the boundary layers. In addition to this, temperature remains uniform even if segregation occurs. This suggests the possibility that there exists some "thermal equilibrium state" even in a vibrated bed of powder. This finding may lead to a unified view of the dynamic steady state of granular matter.

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