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	Numerical simulation method of unsteady vortical flows
	Zhu Baoshan ; Lei Jun ; Cao Shuliang
	2010-05-11 ; 2010-05-11
关键词	Theoretical or Mathematical/ aerodynamics convection flow simulation numerical analysis Poisson equation Runge-Kutta methods vortices/ numerical simulation method unsteady vortical flows vorticity-stream function method transport equation fourth-order Runge-Kutta method Steger-Warming approximate factorization scheme convective term Chakravaythy-Oscher total variation diminishing scheme TVD scheme Poisson equation Tschebyscheff successive linear over-relaxation method SLOR method thin cambered airfoil Reynolds numbers/ A4730 Rotational flow, vortices, buoyancy and other flows involving body forces A4710 General fluid dynamics theory, simulation and other computational methods A4725Q Convection and heat transfer A0260 Numerical approximation and analysis A4740 Compressible flows shock and detonation phenomena
中文摘要	A vorticity-stream function method was developed to simulate unsteady vortical flows. The solution of the vorticity transport equation was split into four steps using the fourth-order Runge-Kutta method. At each step, the equation was solved in two computational directions after factorization using the Steger-Warming approximate factorization scheme with the convective term discretized with the Chakravaythy-Oscher total variation diminishing (TVD) scheme. The stream function Poisson equation was solved with the Tschebyscheff successive linear over-relaxation (SLOR) method in alternating directions. The unsteady vortical flows past an impulsively started cylinder and flows around a thin cambered airfoil at high Reynolds numbers were simulated using the method. The results compare well with experimental data and previous calculations.
语种	中文 ; 中文
出版者	Tsinghua Univ. Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/25951]
专题	清华大学
推荐引用方式 GB/T 7714	Zhu Baoshan,Lei Jun,Cao Shuliang. Numerical simulation method of unsteady vortical flows[J],2010, 2010.
APA	Zhu Baoshan,Lei Jun,&Cao Shuliang.(2010).Numerical simulation method of unsteady vortical flows..
MLA	Zhu Baoshan,et al."Numerical simulation method of unsteady vortical flows".(2010).

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