Coexistence of two granular temperatures in binary vibrofluidized beds

RD Wildman, David Parker

Research output: Contribution to journalArticle

196 Citations (Scopus)


An investigation into the granular temperature distributions of a binary vibrofluidized granular bed has been conducted using positron emission particle tracking. By repeating each experiment with the tracer selected in turn from the two size components, the granular temperature and packing fraction distributions for each phase were determined. It was found that, for a range of size fractions, the granular temperature of the larger particles was higher than that of the smaller diameter grains, a result which was supported by a simple theoretical analysis based on the steady state energy equation.
Original languageEnglish
Pages (from-to)064301
Number of pages1
JournalPhysical Review Letters
Issue number6
Early online date1 Jan 2002
Publication statusPublished - 1 Feb 2002


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