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	Fourth-order compact scheme finite method for large eddy simulations of turbulent flows
	Xu Lan ; Xu Chunxiao ; Cui Guixiang ; Chen Naixiang
	2010-05-11 ; 2010-05-11
关键词	Theoretical or Mathematical/ channel flow finite volume methods flow simulation interpolation Navier-Stokes equations Runge-Kutta methods turbulence/ fourth-order-accurate compact finite volume scheme large eddy simulations finite volume method complex incompressible turbulent flows Navier-Stokes equations nonstaggered grids spatial discretization fourth-order Runge-Kutta integration pressure-velocity coupling momentum interpolation method lid-driven cavity flow problem oscillating plate turbulent channel flow subgrid stresses direct numerical simulation/ A4725 Turbulent flows, convection, and heat transfer A4760 Flows in ducts, channels, and conduits A4710 General fluid dynamics theory, simulation and other computational methods A0260 Numerical approximation and analysis E2130 Fluid mechanics and aerodynamics (mechanical engineering) E0210L Numerical analysis
中文摘要	An high accurate finite volume method for large eddy simulations (LES) was developed to precisely predict complex incompressible turbulent flows. The filtered Navier-Stokes equations were solved numerically on non-staggered grids, with a fourth-order-accurate compact finite volume scheme for spatial discretization and a fourth-order Runge-Kutta integration for the time step. The pressure-velocity coupling was handled using the momentum interpolation method with a fourth-order-accurate compact scheme. Analysis of the lid-driven cavity flow problem and flow over an oscillating plate shows that the method is approximately fourth-order accurate. Turbulent channel flow was then analyzed with the dynamic Smagroinsky model for the subgrid stresses. The results agree well with direct numerical simulation (DNS) results which shows that the method can be used to accurately simulate complex turbulent flows.
语种	英语 ; 英语
出版者	Tsinghua Univ. Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/25592]
专题	清华大学
推荐引用方式 GB/T 7714	Xu Lan,Xu Chunxiao,Cui Guixiang,et al. Fourth-order compact scheme finite method for large eddy simulations of turbulent flows[J],2010, 2010.
APA	Xu Lan,Xu Chunxiao,Cui Guixiang,&Chen Naixiang.(2010).Fourth-order compact scheme finite method for large eddy simulations of turbulent flows..
MLA	Xu Lan,et al."Fourth-order compact scheme finite method for large eddy simulations of turbulent flows".(2010).

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