Velocity Distributions in Inelastic Granular Gases with Continuous Size Distributions

We study by numerical simulation the property of velocity distributions of granular gases with a power-law size distribution, driven by uniform heating and boundary heating. It is found that the form of velocity distribution is primarily controlled by the restitution coefficient [eta] and q, the rat...

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Bibliographic Details
Published inChinese physics letters Vol. 28; no. 9; pp. 090506 - 1-090506-4
Main Authors Li, Rui (睿李), Zhang, Duan-Ming (端明 张), Li, Zhi-Hao (志浩 李)
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.09.2011
Subjects
Boundaries
Collisions
Computer simulation
Control systems
Heating
Mathematical models
Size distribution
Velocity distribution
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ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/28/9/090506

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Summary:We study by numerical simulation the property of velocity distributions of granular gases with a power-law size distribution, driven by uniform heating and boundary heating. It is found that the form of velocity distribution is primarily controlled by the restitution coefficient [eta] and q, the ratio between the average number of heatings and the average number of collisions in the system. Furthermore, we show that uniform and boundary heating can be understood as different limits of q, with q >> 1 and q [< or =] 1, respectively.
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ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/28/9/090506