Detached eddy simulation for turbulent flows in a pipe with a snowflake fractal orifice

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	Detached eddy simulation for turbulent flows in a pipe with a snowflake fractal orifice
	Zheng HW(郑洪伟); Nicolleau FCGA; Qin N
	2012
会议名称	8th Workshop on Synthetic Turbulence Models
会议日期	JUN 28-29, 2012
通讯作者邮箱	h.zheng@imech.ac.cn
会议地点	Paris, FRANCE
关键词	Turbulent Flows Dimension Surfaces
卷号	18
页码	9-21
通讯作者	Zheng, HW (reprint author), Chinese Acad Sci, Inst Mech, LHD, Beijing 100190, Peoples R China.
中文摘要	Turbulent flows in a pipe with a snowflake fractal shape (SF2) orifice are investigated using the parallelized, density-based, dynamic mesh and detached eddy simulation code (DG-DES) (Xia, PhD thesis, 2005; Xia and Qin, AIAA 2005-106, 2005). For comparison with the laboratory experiment, the flow is essentially a low Mach number flow. In order to tackle the low speed problem of the density based method, the SLAU (Simple Low dissipation AUSM) (Shima and Kitamura in 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, AIAA 2009-136, 2009) is adopted in this paper. The scheme exhibits low numerical dissipations for low speeds and needs no problem-dependent "cut-off Mach number". The results for the flows after the orifice are compared with those of the corresponding experiment (Chong, PhD thesis, 2008). Comparisons show good agreements in the mean velocity profiles at the different holes.
收录类别	CPCI
合作状况	国际
产权排序	[Zheng, H. W.] LHD, Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100190, China;[Nicolleau, F. C. G. A.] Sheffield Fluid Mechanics Group, Department of Mechanical Engineering, The University of Sheffield, Mappin Street, Sheffield, S1 3JD, UK;[Qin, N.] Department of Mechanical Engineering, The University of Sheffield, Mappin Street, Sheffield, S1 3JD, UK
会议主办者	Univ Pierre & Marie Curie, Inst Jean le Rond DAlembert
会议网址	http://link.springer.com/chapter/10.1007/978-94-007-2506-5_2
会议录	NEW APPROACHES IN MODELING MULTIPHASE FLOWS AND DISPERSION IN TURBULENCE, FRACTAL METHODS AND SYNTHETIC TURBULENCE
会议录出版者	SPRINGER
会议录出版地	PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS
语种	英语
ISSN号	1382-4309
ISBN号	978-94-007-2505-8
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/47439]
专题	力学研究所_高温气体动力学国家重点实验室
推荐引用方式 GB/T 7714	Zheng HW,Nicolleau FCGA,Qin N. Detached eddy simulation for turbulent flows in a pipe with a snowflake fractal orifice[C]. 见:8th Workshop on Synthetic Turbulence Models. Paris, FRANCE. JUN 28-29, 2012.http://link.springer.com/chapter/10.1007/978-94-007-2506-5_2.