Velocity Distributions in Inelastic Granular Gases with Continuous Size Distributions
LI Rui1**, ZHANG Duan-Ming2, LI Zhi-Hao1
1Department of Physics, Hubei University of Education, Wuhan 430205 2Department of Physics, Huazhong University of Science and Technology, Wuhan 430074
Velocity Distributions in Inelastic Granular Gases with Continuous Size Distributions
LI Rui1**, ZHANG Duan-Ming2, LI Zhi-Hao1
1Department of Physics, Hubei University of Education, Wuhan 430205 2Department of Physics, Huazhong University of Science and Technology, Wuhan 430074
摘要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 η 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≤1, respectively.
Abstract：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 η 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≤1, respectively.
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2011, Vol. 28 
