Phase changes in an inelastic hard disk system with a heat bath under weak gravity for granular fluidization

Masaharu Isobe, Hiizu Nakanishi

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We performed numerical simulations on a two-dimensional inelastic hard disk system under gravity with a heat bath to study the dynamics of granular fluidization. Upon increasing the temperature of the heat bath, we found that three phases, namely, the condensed phase, locally fluidized phase, and granular turbulent phase, can be distinguished using the maximum packing fraction and the excitation ratio, or the ratio of the kinetic energy to the potential energy. It is shown that the system behavior in each phase is very different from that of an ordinary vibrating bed.

Original languageEnglish
Pages (from-to)2882-2885
Number of pages4
Journaljournal of the physical society of japan
Volume68
Issue number9
DOIs
Publication statusPublished - Jan 1 1999

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baths
gravitation
heat
beds
kinetic energy
potential energy
excitation
simulation
temperature

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Phase changes in an inelastic hard disk system with a heat bath under weak gravity for granular fluidization. / Isobe, Masaharu; Nakanishi, Hiizu.

In: journal of the physical society of japan, Vol. 68, No. 9, 01.01.1999, p. 2882-2885.

Research output: Contribution to journalArticle

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