Reynolds-stress-constrained large-eddy simulation of wall-bounded turbulent flows 期刊名称： Journal of Fluid Mechanics
按键音作者： Chen, Shiyi,Xia, Zhenhua,Pei, Suyang,Wang, Jianchun,Yang, Yantao,Xiao,
企业沙盘什么叫容积Zuoli,Shi, Yipeng
年份： 2012年
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关键词： turbulence control; turbulence modelling; turbulence simulation社会时事
摘要：In the traditional hybrid RANS/LES approaches for the simulation of wall-bounded fluid turbulence, such as detached-eddy simulation (DES), the whole flow domain is divided into an inner layer and an outer layer. Typically the Reynolds-averaged Navier–Stokes (RANS) equations are ud for the inner layer, while large-eddy simulation (LES) is ud for the outer layer. The transition from the inner-layer solution to the outer-layer solution is often problematic due to the lack of small-scale dynamics in the RANS region. In this paper, we propo to simulate the whole flow domain by large-eddnf称号附魔
dy simulation while enforcing a Reynolds-stress constraint on the subgrid-scale (SGS) stress model in the inner layer. Both the algebraic eddy-viscosity model and the one-equation Spalart–Allmaras (SA) model have been ud to constrain
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