Numerical Simulation of Unsteady 2-D Compressible Flow Around a Circular Cylinder

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	Numerical Simulation of Unsteady 2-D Compressible Flow Around a Circular Cylinder
	Ju Jiangning; Wu Wenquan
刊名	JOURNAL OF THERMAL SCIENCE
	2000
卷号	9 期号:2 页码:187,192
关键词	Compressible Vortex Method Unsteady Flow.
英文摘要	A numerical method for solving isentropic compressible flow problems is presented. This method uses the vorticity and the density as variables. The crux of the method lies in the numerical simulation of the process of vorticity and density variation. The fundamental equation of a compressible discrete vortex method is derived. Unlike the Biot- Savart law in the incompressible fluids, the modified Biot-Savart law in compressible fluid should contain the change of the non-solenoidal. The change of density induces the variation of the fluid velocity. The effects of compressibility on flow past a circular cylinder have been investigated by using the compressible discrete vortex method at a Reynolds number of l.E+6. The Mach number is 0.5. The results show that the form of vortex shedding is different from the incompressible flow. The separation positions shift upstream, the wake becomes more wide and the street is not clear like the incompressible.
公开日期	2013-03-12
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/53812]
专题	工程热物理研究所_Journal of Thermal Science
推荐引用方式 GB/T 7714	Ju Jiangning,Wu Wenquan. Numerical Simulation of Unsteady 2-D Compressible Flow Around a Circular Cylinder[J]. JOURNAL OF THERMAL SCIENCE,2000,9(2):187,192.
APA	Ju Jiangning,&Wu Wenquan.(2000).Numerical Simulation of Unsteady 2-D Compressible Flow Around a Circular Cylinder.JOURNAL OF THERMAL SCIENCE,9(2),187,192.
MLA	Ju Jiangning,et al."Numerical Simulation of Unsteady 2-D Compressible Flow Around a Circular Cylinder".JOURNAL OF THERMAL SCIENCE 9.2(2000):187,192.