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Preconditioning method and engineering application of large eddy simulation

文献类型：期刊论文

作者Li XueSong1,2; Xu JianZhong2; Gu ChunWei1
刊名SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY
出版日期2008-06-01
卷号51期号:6页码:667-677
关键词preconditioning method eigenvalue matrix Low-Speed-Roe scheme large eddy simulation engineering application
英文摘要On applying large eddy simulation (LES) to engineering interest, one of the keys is to obtain two-order low-dissipation shock-capturing schemes adapted to LES. Therefore, the preconditioning method for all speed flows is adopted. However, the accuracy of preconditioned schemes is not satisfactory because of the poor performance of stability of preconditioning techniques especially in viscous flows. The reason of unstability is attributed to the unstability structure in the preconditioned eigenvalue matrix. Based on Roe scheme and two assumptions for low-Mach-Number flows, the new scheme named Low-Speed-Roe scheme is deduced for removing the unstability structure. Numerical experiments show that this scheme has the reasonable computational stability. For general-precision problems, Low-Speed-Roe scheme has similar behavior as the classical preconditioned Roe scheme. For simulations of high-accuracy requirement such as LES, Low-Speed-Roe scheme can obtain better results of complex flows, such as the laminar separation bubble on the suction surface of the high-loaded turbine blade T106.
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Physics, Multidisciplinary
研究领域[WOS]Physics
关键词[WOS]VISCOUS FLOWS ; TRANSITION ; WAKES
收录类别SCI
语种英语
WOS记录号WOS:000256031100009
公开日期2015-12-22
源URL[http://ir.etp.ac.cn/handle/311046/106328]  
专题工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI）
作者单位1.Tsinghua Univ, Key Lab Thermal Sci & Power Engn, Minist Educ China, Dept Thermal Engn, Beijing 100084, Peoples R China
2.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100080, Peoples R China
推荐引用方式
GB/T 7714		 Li XueSong,Xu JianZhong,Gu ChunWei. Preconditioning method and engineering application of large eddy simulation[J]. SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,2008,51(6):667-677.
APA Li XueSong,Xu JianZhong,&Gu ChunWei.(2008).Preconditioning method and engineering application of large eddy simulation.SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,51(6),667-677.
MLA Li XueSong,et al."Preconditioning method and engineering application of large eddy simulation".SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY 51.6(2008):667-677.

入库方式： OAI收割

来源：工程热物理研究所

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