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Kinetic theory of binary particles with unequal mean velocities and non-equipartition energies
Chen, Yanpei; Mei, Yifeng; Wang, Wei
2017-03-01
发表期刊PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
ISSN0378-4371
卷号469页码:293-304
摘要The hydrodynamic conservation equations and constitutive relations for a binary granular mixture composed of smooth, nearly elastic spheres with non-equipartition energies and different mean velocities are derived. This research is aimed to build three-dimensional kinetic theory to characterize the behaviors of two species of particles suffering different forces. The standard Enskog method is employed assuming a Maxwell velocity distribution for each species of particles. The collision components of the stress tensor and the other parameters are calculated from the zeroth- and first-order approximation. Our results demonstrate that three factors, namely the differences between two granular masses, temperatures and mean velocities all play important roles in the stress-strain relation of the binary mixture, indicating that the assumption of energy equipartition and the same mean velocity may not be acceptable. The collision frequency and the solid viscosity increase monotonously with each granular temperature. The zeroth-order approximation to the energy dissipation varies greatly with the mean velocities of both species of spheres, reaching its peak value at the maximum of their relative velocity. (C) 2016 Elsevier B.V. All rights reserved.
关键词Kinetic Theory Of Granular Flow Binary Granular Mixture Energy Non-equipartition
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1016/j.physa.2016.11.104
收录类别SCI
语种英语
关键词[WOS]2 GRANULAR TEMPERATURES ; ELASTIC SPHERES ; FLUIDIZED-BEDS ; MIXTURES ; FLOW ; MODEL ; HYDRODYNAMICS ; SIMULATION ; SIZE ; SMOOTH
WOS研究方向Physics
WOS类目Physics, Multidisciplinary
项目资助者Ministry of Science and Technology of the People's Republic of China(2012CB215003) ; National Natural Science Foundation of China(91334204 ; Chinese Academy of Sciences(XDA07080100) ; China Postdoctoral Science Foundation(2014M561071) ; 21176240 ; 21625605)
WOS记录号WOS:000392793500029
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21906
专题多相复杂系统国家重点实验室
作者单位Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
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Chen, Yanpei,Mei, Yifeng,Wang, Wei. Kinetic theory of binary particles with unequal mean velocities and non-equipartition energies[J]. PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS,2017,469:293-304.
APA Chen, Yanpei,Mei, Yifeng,&Wang, Wei.(2017).Kinetic theory of binary particles with unequal mean velocities and non-equipartition energies.PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS,469,293-304.
MLA Chen, Yanpei,et al."Kinetic theory of binary particles with unequal mean velocities and non-equipartition energies".PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS 469(2017):293-304.
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