Constrained large-eddy simulation of wall-bounded compressible turbulent   flows

doi:10.1063/1.4824393

CORC > 北京大学 > 工学院

	Constrained large-eddy simulation of wall-bounded compressible turbulent flows
	Jiang, Zhou ; Xiao, Zuoli ; Shi, Yipeng ; Chen, Shiyi
刊名	physics of fluids
	2013
关键词	DIRECT NUMERICAL-SIMULATION CHANNEL FLOW REYNOLDS-NUMBER LAYER MODELS LES INTERFACE TRANSPORT
DOI	10.1063/1.4824393
英文摘要	A constrained large-eddy simulation (CLES) approach is developed for wall-bounded compressible turbulent flows based on its incompressible analogue [Chen et al., "Reynolds-stress-constrained large-eddy simulation of wall-bounded turbulent flows," J. Fluid Mech. 703, 1-28 (2012)]. In the new CLES approach, both the subgrid-scale (SGS) stress and the SGS heat flux are decomposed into an averaged part and a fluctuating part in the near-wall region with the mean SGS stress and heat flux constrained by prescribed Reynolds stress model and turbulent heat flux model, respectively. The Smagorinsky SGS models are employed to approximate the SGS stress and heat flux in the remaining region of the flow domain. The present CLES method is validated by simulating the compressible turbulent channel flows at various Reynolds numbers and Mach numbers. The mean velocity profiles, mean temperature profiles, and other statistical quantities and turbulent structures are obtained and well compared among the present approach, direct numerical simulation (DNS), detached eddy simulation (DES) and traditional large eddy simulation (LES). The results demonstrate that the dual constraint of Reynolds stress and turbulent heat flux plays a non-trivial role in enhancing the ability of LES for wall-bounded compressible flows. In addition, the Reynolds and Mach numbers effects on the mean and statistical quantities as well as the turbulence structures are investigated using the proposed CLES method. Themain conclusions are in very good agreement with those drawn by other authors using DNS method. All the results manifest that the present CLES technique is an encouraging and useful tool for wall-bounded compressible turbulent flows. (C) 2013 AIP Publishing LLC.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000326642800052&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Mechanics; Physics, Fluids & Plasmas; SCI(E); EI; 5; ARTICLE; 10; 25
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/154408]
专题	工学院
推荐引用方式 GB/T 7714	Jiang, Zhou,Xiao, Zuoli,Shi, Yipeng,et al. Constrained large-eddy simulation of wall-bounded compressible turbulent flows[J]. physics of fluids,2013.
APA	Jiang, Zhou,Xiao, Zuoli,Shi, Yipeng,&Chen, Shiyi.(2013).Constrained large-eddy simulation of wall-bounded compressible turbulent flows.physics of fluids.
MLA	Jiang, Zhou,et al."Constrained large-eddy simulation of wall-bounded compressible turbulent flows".physics of fluids (2013).