Temporal decorrelations in compressible isotropic turbulence

IMECH-IR > 非线性力学国家重点实验室

	Temporal decorrelations in compressible isotropic turbulence
	Li D(李栋); Zhang X(张星); He GW(何国威); He, GW (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
发表期刊	PHYSICAL REVIEW E
	2013-08-14
卷号	88 期号:2 页码:021001/1-021001/4
ISSN	1539-3755
摘要	Temporal decorrelations in compressible isotropic turbulence are studied using the space-time correlation theory and direct numerical simulation. A swept-wave model is developed for dilatational components, while the classic random sweeping model is proposed for solenoidal components. The swept-wave model shows that the temporal decorrelations in dilatational fluctuations are dominated by two physical processes: random sweeping and wave propagation. These models are supported by the direct numerical simulation of compressible isotropic turbulence, in the sense that all curves of normalized time correlations for different wave numbers collapse into a single one using the normalized time separations. The swept-wave model is further extended to account for a constant mean velocity.
关键词	Temporal Decorrelation Compressible Isotropic Turbulence Space-time Correlation The Helmholtz Decomposition
学科领域	湍流
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000323159000001
项目资助者	National Natural Science Foundation of China [11232011, 11021262]; National Basic Research Program of China (973 Program) [2013CB834100]
课题组名称	LNM湍流
论文分区	一类
引用统计	被引频次：20[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/311007/47456
专题	非线性力学国家重点实验室
通讯作者	He, GW (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Li D,Zhang X,He GW,et al. Temporal decorrelations in compressible isotropic turbulence[J]. PHYSICAL REVIEW E,2013,88,2,:021001/1-021001/4.
APA	Li D,Zhang X,He GW,&He, GW .(2013).Temporal decorrelations in compressible isotropic turbulence.PHYSICAL REVIEW E,88(2),021001/1-021001/4.
MLA	Li D,et al."Temporal decorrelations in compressible isotropic turbulence".PHYSICAL REVIEW E 88.2(2013):021001/1-021001/4.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
IMCAS-J2013-240.pdf（244KB）			开放获取	--	浏览下载