Detached eddy simulation for turbulent flows in a pipe with a snowflake fractal orifice | |
Zheng HW(郑洪伟)![]() | |
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
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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. |
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