Subgrid-scale model for large-eddy simulation of transition and turbulence in compressible flows

doi:10.1063/1.5128061

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Subgrid-scale model for large-eddy simulation of transition and turbulence in compressible flows
	Zhou H(周浩)1,2; Li XL(李新亮)1,2; Qi H(齐涵)1,2; Yu ZP(于长平)1,2
刊名	PHYSICS OF FLUIDS
	2019-12-01
卷号	31 期号:12 页码:14
ISSN号	1070-6631
DOI	10.1063/1.5128061
通讯作者	Yu, Changping(cpyu@imech.ac.cn)
英文摘要	This article focuses on a subgrid-scale (SGS) eddy viscosity model based on helicity which is derived from our previous research [Yu et al., "Subgrid-scale eddy viscosity model for helical turbulence," Phys. Fluids 25, 095101 (2013)] for large-eddy simulation of transition and turbulence in compressible flows. Based on the character of the compressible boundary layer over a flat plate, we obtain from theoretical analysis that this model can automatically distinguish laminar flow and turbulence and can also simulate turbulence well. Meanwhile, an a priori test using direct numerical simulation (DNS) data of a spatially developing flat-plate boundary layer at Ma = 2.25 shows that the helicity model can clearly differentiate laminar, transitional, and turbulent regions. Comparing the numerical simulation results with DNS and other SGS models in the spatially developing boundary-layer over a flat plate, we find that the suggested model could precisely predict the onset of transition, transition peak, skin-friction coefficient, mean velocity profile, mean temperature profile, and turbulence intensities. In the case of a compression ramp, the model can well simulate the bypass-type transition, the separated and reattached points, and the size of the separation bubble in the corner region. Furthermore, the prominent advantage of the proposed model can predict transitional flow exactly with no explicit filtering or dynamic procedure. Published under license by AIP Publishing.
分类号	一类/力学重要期刊
资助项目	National Key Research and Development Program of China[2019YFA0405302] ; National Key Research and Development Program of China[2016YFA0401200] ; NSFC[91852203] ; NSFC[91441103] ; NSFC[11372330] ; NSFC[11472278] ; Science Challenge Project[TZ2016001] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA17030100] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDC01000000]
WOS关键词	DIRECT NUMERICAL-SIMULATION ; DYNAMIC SMAGORINSKY MODEL ; BOUNDARY-LAYER
WOS研究方向	Mechanics ; Physics
语种	英语
WOS记录号	WOS:000531265100001
资助机构	National Key Research and Development Program of China ; NSFC ; Science Challenge Project ; Strategic Priority Research Program of Chinese Academy of Sciences
其他责任者	Yu, Changping
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/82027]
专题	力学研究所_高温气体动力学国家重点实验室
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, LHD, Beijing 100190, Peoples R China;
推荐引用方式 GB/T 7714	Zhou H,Li XL,Qi H,et al. Subgrid-scale model for large-eddy simulation of transition and turbulence in compressible flows[J]. PHYSICS OF FLUIDS,2019,31(12):14.
APA	周浩,李新亮,齐涵,&于长平.(2019).Subgrid-scale model for large-eddy simulation of transition and turbulence in compressible flows.PHYSICS OF FLUIDS,31(12),14.
MLA	周浩,et al."Subgrid-scale model for large-eddy simulation of transition and turbulence in compressible flows".PHYSICS OF FLUIDS 31.12(2019):14.