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题名: Hydrodynamics of granular gases with a two-peak distribution
作者: Chen, YP ;  Hou, MY ;  Jiang, YM ;  Liu, M
刊名: PHYSICAL REVIEW E
出版日期: 2013
卷号: 88, 期号:5, 页码:52204
关键词: 2 DIMENSIONS ;  FLOWS ;  FLUIDIZATION ;  POWDER ;  BEADS
学科分类: Physics
通讯作者: Chen, YP (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Key Lab Soft Matter Phys, Beijing 100190, Peoples R China.
部门归属: [Chen, Yanpei; Hou, Meiying] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Key Lab Soft Matter Phys, Beijing 100190, Peoples R China; [Chen, Yanpei; Hou, Meiying; Jiang, Yimin; Liu, Mario] Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China; [Jiang, Yimin] Cent S Univ, Changsha 410083, Hunan, Peoples R China; [Liu, Mario] Univ Tubingen, D-72076 Tubingen, Germany
英文摘要: Vibrating walls, frequently employed to maintain the temperature (i.e., average velocity) in a granular gas, modify the system strongly, rendering it dissimilar to a molecular one in various aspects. As evidenced by microgravity experiments employing a quasi-two-dimensional (quasi-2D) rectangular box and by 2D simulations, the one-peak velocity distribution is split into two, rendering the stress both nonuniform and anisotropic-without a shear flow and in the absence of gravitation. To account for this, granular hydrodynamics (as first proposed by Haff and later derived employing the kinetic theory) is generalized by introducing two additional variables, with one accounting for the distance between the two peaks and a second for the difference between the average velocities along different directions. The hydrodynamic theory thus generalized relates the velocity distribution to the stress, yielding results that agree with experiments and simulations.
资助者: National Natural Science Foundation of China [11034010, 11274354]; Chinese Academy of Sciences [XDA04020200]; Special Fund for Earthquake Research of China [201208011]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000327241500003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15227
Appears in Collections:理论物理所2013年知识产出 _期刊论文

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Recommended Citation:
Chen, YP,Hou, MY,Jiang, YM,et al. Hydrodynamics of granular gases with a two-peak distribution[J]. PHYSICAL REVIEW E,2013,88(5):52204.
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