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Lattice Boltzmann simulations of high-order statistics in isotropic turbulent flows

文献类型：期刊论文

作者Jin GD(晋国栋); Wang SZ(王士召); Wang Y; He GW(何国威); He GW(何国威); Jin GD(晋国栋); Wang SZ(王士召)
刊名APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION
出版日期2018
卷号39期号:1页码:21-30
关键词mesoscopic modelling lattice Boltzmann method (LBM) isotropic turbulent flow structure function intermittency high-order statistics self-similarity
ISSN号0253-4827
DOI10.1007/s10483-018-2254-9
英文摘要The lattice Boltzmann method (LBM) is coupled with the multiple-relaxation-time (MRT) collision model and the three-dimensional 19-discrete-velocity (D3Q19) model to resolve intermittent behaviors on small scales in isotropic turbulent flows. The high-order scaling exponents of the velocity structure functions, the probability distribution functions of Lagrangian accelerations, and the local energy dissipation rates are investigated. The self-similarity of the space-time velocity structure functions is explored using the extended self-similarity (ESS) method, which was originally developed for velocity spatial structure functions. The scaling exponents of spatial structure functions at up to ten orders are consistent with the experimental measurements and theoretical results, implying that the LBM can accurately resolve the intermittent behaviors. This validation provides a solid basis for using the LBM to study more complex processes that are sensitive to small scales in turbulent flows, such as the relative dispersion of pollutants and mesoscale structures of preferential concentration of heavy particles suspended in turbulent flows.
分类号二类/Q1
URL标识查看原文
WOS关键词FULLY-DEVELOPED TURBULENCE ; EXTENDED SELF-SIMILARITY ; HOMOGENEOUS TURBULENCE ; REYNOLDS-NUMBER ; CHANNEL FLOW ; 3 DIMENSIONS ; ACCELERATION ; DYNAMICS ; MODELS
WOS研究方向Mathematics, Applied ; Mechanics
语种英语
WOS记录号WOS:000419010600003
资助机构Science Challenge Program [TZ2016001] ; National Natural Science Foundation of China [11472277, 11572331, 11232011, 11772337] ; Strategic Priority Research Program ; Chinese Academy of Sciences (CAS) [XDB22040104] ; Key Research Program of Frontier Sciences, CAS [QYZDJ-SSW-SYS002] ; National Basic Research Program of China (973 Program) [2013CB834100]
源URL[http://dspace.imech.ac.cn/handle/311007/77889]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.Chinese Acad Sci, Inst Mech, Stake Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Jin GD,Wang SZ,Wang Y,et al. Lattice Boltzmann simulations of high-order statistics in isotropic turbulent flows[J]. APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION,2018,39(1):21-30.
APA 晋国栋.,王士召.,Wang Y.,何国威.,He GW.,...&Wang SZ.(2018).Lattice Boltzmann simulations of high-order statistics in isotropic turbulent flows.APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION,39(1),21-30.
MLA 晋国栋,et al."Lattice Boltzmann simulations of high-order statistics in isotropic turbulent flows".APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION 39.1(2018):21-30.

入库方式： OAI收割

来源：力学研究所

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