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

doi:10.1007/s10483-018-2254-9

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	Lattice Boltzmann simulations of high-order statistics in isotropic turbulent flows
	Jin GD(晋国栋); Wang SZ(王士召); Wang Y ; He GW(何国威)
发表期刊	APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION
	2018
卷号	39 期号:1 页码:21-30
ISSN	0253-4827
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.
关键词	mesoscopic modelling lattice Boltzmann method (LBM) isotropic turbulent flow structure function intermittency high-order statistics self-similarity
DOI	10.1007/s10483-018-2254-9
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000419010600003
关键词[WOS]	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
WOS类目	Mathematics ; Mechanics
项目资助者	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]
论文分区	二类/Q1
力学所作者排名	1
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/77889
专题	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.(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.