Kinetic Approach to One-Dimensional Non-Uniform Granular Gases

doi:10.1088/0305-4470/38/41/003

IMECH-IR > 力学所知识产出(1956-2008)

	Kinetic Approach to One-Dimensional Non-Uniform Granular Gases
	Zhang DM; Li R; Su XY; Pan GJ; Yu BM(郁伯铭); Zhang, DM (reprint author), Huazhong Univ Sci & Technol, Dept Phys, 1037 Luoyu Rd, Wuhan 430074, Peoples R China.
发表期刊	Journal of Physics A-Mathematical and General
	2005
卷号	38 期号:41 页码:8861-8872
ISSN	0305-4470
摘要	We present a model of polydisperse granular mixture with a power-law size distribution subjected to Brownian forces. The driven inelastic mixture which has n components can be regarded as 'granular gas'. The stationary state where the mixture reaches is the result of the balance between the dissipation and random forces which inject energies. We have studied the nonequilibrium properties of the system by means of Monte Carlo method. When the typical relaxation time tau of the driving Brownian process is greater than the mean collision time tau(c), the velocity probability distribution strongly deviates from the Gaussian one and the system has a strong spatial clustering. We define the partial granular temperature and the global granular temperature of the multi-component mixture. The partial granular temperature is the average kinetic energy per particle of the same component and the global one is the statistic average value per partial granular temperature of the mixture. One of the most useful properties of the temperature, i.e., the independence from the thermal substance, is lost. We introduce a fractal dimension D as a measurement of the inhomogeneity of the size distribution of the mixture. Our simulations represent that the deviation and clusterization become more and more pronounced with the increasing value of the fractal dimension D. The global granular temperature decreases, and dissipated energy per particle increases as D augments.
学科领域	力学
DOI	10.1088/0305-4470/38/41/003
收录类别	SCI
语种	英语
WOS记录号	WOS:000233112500005
关键词[WOS]	EFFECTIVE THERMAL-CONDUCTIVITY ; PARTICLES ; FLOWS ; HYDRODYNAMICS ; COLLAPSE
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary ; Physics, Mathematical
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/15715
专题	力学所知识产出(1956-2008)
通讯作者	Zhang, DM (reprint author), Huazhong Univ Sci & Technol, Dept Phys, 1037 Luoyu Rd, Wuhan 430074, Peoples R China.
推荐引用方式 GB/T 7714	Zhang DM,Li R,Su XY,et al. Kinetic Approach to One-Dimensional Non-Uniform Granular Gases[J]. Journal of Physics A-Mathematical and General,2005,38,41,:8861-8872.
APA	Zhang DM,Li R,Su XY,Pan GJ,Yu BM,&Zhang, DM .(2005).Kinetic Approach to One-Dimensional Non-Uniform Granular Gases.Journal of Physics A-Mathematical and General,38(41),8861-8872.
MLA	Zhang DM,et al."Kinetic Approach to One-Dimensional Non-Uniform Granular Gases".Journal of Physics A-Mathematical and General 38.41(2005):8861-8872.

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