All-speed Roe scheme for the large eddy simulation of homogeneous decaying turbulence

doi:10.1080/10618562.2016.1156095

	All-speed Roe scheme for the large eddy simulation of homogeneous decaying turbulence
	Li XS; Li XL(李新亮); Li, XS (reprint author), Tsinghua Univ, Dept Thermal Engn, Key Lab Thermal Sci & Power Engn, Minist Educ, Beijing 100084, Peoples R China.
发表期刊	INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS
	2016
卷号	30 期号:1 页码:69-78
ISSN	1061-8562
摘要	As a type of shock-capturing scheme, the traditional Roe scheme fails in large eddy simulation (LES) because it cannot reproduce important turbulent characteristics, such as the famous k(-5/3) spectral law, as a consequence of the large numerical dissipation. In this work, the Roe scheme is divided into five parts, namely, xi, delta U-p, delta p(p), delta U-u, and delta p(u), which denote basic upwind dissipation, pressure difference-driven modification of interface fluxes, pressure difference-driven modification of pressure, velocity difference-driven modification of interface fluxes, and velocity difference-driven modification of pressure, respectively. Then, the role of each part in the LES of homogeneous decaying turbulence with a low Mach number is investigated. Results show that the parts delta U-u, delta p(p), and delta U-p have little effect on LES. Such minimal effect is integral to computational stability, especially for delta U-p. The large numerical dissipation is due to xi and delta p(u), each of which features a larger dissipation than the sub-grid scale model. On the basis of these conditions, an improved all-speed Roe scheme for LES is proposed. This scheme can provide satisfactory LES results even for coarse grid resolutions with usually adopted second-order reconstructions for the finite volume method.
关键词	All-speed Scheme Large Eddy Simulation Homogeneous Decaying Turbulence Roe Scheme Numerical Dissipation
DOI	10.1080/10618562.2016.1156095
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000373597900006
关键词[WOS]	all-speed scheme ; large eddy simulation ; homogeneous decaying turbulence ; Roe scheme ; numerical dissipation
WOS研究方向	Mechanics ; Physics
WOS类目	Mechanics ; Physics, Fluids & Plasmas
项目资助者	This work is supported by the National Natural Science Foundation of China [project number 51276092].
课题组名称	LHD可压缩湍流
论文分区	Q3
引用统计	被引频次：45[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/311007/59535
专题	高温气体动力学国家重点实验室
通讯作者	Li, XS (reprint author), Tsinghua Univ, Dept Thermal Engn, Key Lab Thermal Sci & Power Engn, Minist Educ, Beijing 100084, Peoples R China.
推荐引用方式 GB/T 7714	Li XS,Li XL,Li, XS . All-speed Roe scheme for the large eddy simulation of homogeneous decaying turbulence[J]. INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS,2016,30,1,:69-78.
APA	Li XS,李新亮,&Li, XS .(2016).All-speed Roe scheme for the large eddy simulation of homogeneous decaying turbulence.INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS,30(1),69-78.
MLA	Li XS,et al."All-speed Roe scheme for the large eddy simulation of homogeneous decaying turbulence".INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS 30.1(2016):69-78.

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