Development of Roe-type scheme for all-speed flows based on preconditioning method

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	Development of Roe-type scheme for all-speed flows based on preconditioning method
	Li, Xue-song 1; Go, Chun-wei 1; Xu, Jian-zhong 2
刊名	COMPUTERS & FLUIDS
	2009-04-01
卷号	38 期号:4 页码:810-817
英文摘要	The problems of mixed low-speed/high-speed flows are not solved properly with existing compressible method. Based on preconditioning technology, a new scheme, All-Speed-Roe scheme, is proposed. Compared with Roe scheme, it decreases the effect of acoustic speed in its numerical dissipation when Mach numbers decrease. Compared with traditional preconditioned Roe scheme, it overcomes the limit of being cut-off by the global Mach number through modifying the eigenvalues only and has the good convergence acceleration rate for low-Mach-number flows through multiplying the spatial residual by the preconditioner. From another perspective, All-Speed-Roe scheme suggests that there is no necessity to replace the physical acoustic speed in denominator with pseudo-acoustic speed. In theory, All-Speed-Roe scheme is suitable for all speed flow calculations with capturing shock and simulating low-Mach-number flows. The numerical results of Euler nozzle flow, RANS of NASA rotor 37 flow, Euler simulation, Large Eddy Simulation (LES) and Detached Eddy Simulation (DES) of high-loaded blade T106 flow show that All-Speed-Roe scheme can replace traditional preconditioned Roe scheme because it is easier for programming, more robust in computations. more accurate in spatial, and has good convergence rate. (C) 2008 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Computer Science, Interdisciplinary Applications ; Mechanics
研究领域[WOS]	Computer Science ; Mechanics
关键词[WOS]	LARGE-EDDY SIMULATION ; VISCOUS FLOWS ; TURBULENCE ; EQUATIONS ; BEHAVIOR ; AIRFOIL
收录类别	SCI
语种	英语
WOS记录号	WOS:000264305000008
公开日期	2015-12-22
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/106446]
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, Dept Thermal Engn, Minist Educ, Key Lab Thermal Sci & Power 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, Xue-song,Go, Chun-wei,Xu, Jian-zhong. Development of Roe-type scheme for all-speed flows based on preconditioning method[J]. COMPUTERS & FLUIDS,2009,38(4):810-817.
APA	Li, Xue-song,Go, Chun-wei,&Xu, Jian-zhong.(2009).Development of Roe-type scheme for all-speed flows based on preconditioning method.COMPUTERS & FLUIDS,38(4),810-817.
MLA	Li, Xue-song,et al."Development of Roe-type scheme for all-speed flows based on preconditioning method".COMPUTERS & FLUIDS 38.4(2009):810-817.