Experimental investigation of Reynolds stress complex eddy viscosity model for coherent structure dynamics
文献类型：期刊论文
| 作者 | Jia YX; Tang ZQ; Jiang N(姜楠)
|
| 刊名 | Science China-Physics Mechanics & Astronomy
 |
| 出版日期 | 2011 |
| 卷号 | 54期号:7页码:1319-1327 |
| 通讯作者邮箱 | nanj@tju.edu.cn |
| 关键词 | Turbulent Boundary Layer Coherent Structure Complex Eddy Viscosity Model Reynolds Stress Phase Difference Turbulent-Boundary-Layer Wave |
| ISSN号 | 1674-7348 |
| 产权排序 | [Jiang Nan] Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100080, Peoples R China; [Jia YongXia; Tang ZhanQi; Jiang Nan] Tianjin Univ, Sch Mech Engn, Dept Mech, Tianjin 300072, Peoples R China; [Jiang Nan] Tianjin Key Lab Modern Engn Mech, Tianjin 300072, Peoples R China |
| 通讯作者 | Jiang, N (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100080, Peoples R China |
| 合作状况 | 国内 |
| 中文摘要 | Time sequence signals of streamwise and normal velocity components, as well as velocity strain rate, at different vertical locations in the turbulent boundary layer over a smooth flat plate in a wind tunnel have been finely examined by the use of double-sensor hot-wire anemometry. The local module maximum for wavelet coefficient of longitudinal velocity component, as a detecting index, is employed to educe the ejection and sweep process of the coherent structure burst in the turbulent boundary layer from the random fluctuating background. The coherent waveforms of Reynolds stress residual contribution term for random fluctuations to coherent structure, as well as the velocity strain rate of coherent structure, are extracted by the conditional phase average technique. Based on the theoretical analysis of eddy viscosity coefficient in complex eddy viscosity model for coherent structure, the macro-relaxation effect between Reynolds stress residual contribution term of random fluctuations to coherent structure and the velocity strain rate of coherent structure is studied and the variations of the phase difference between them across the turbulent boundary layer are investigated experimentally. The rationality of complex eddy viscosity model for coherent structure is confirmed through the investigation. |
| 学科主题 | Physics |
| 分类号 | 二类/Q3 |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | TURBULENT-BOUNDARY-LAYER ; WAVE |
| 收录类别 | SCI ; EI |
| 资助信息 | This work was jointly supported by the National Natural Science Foundation of China (Grant Nos. 10832001 and 10872145), and Opening Subject of State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences. |
| 原文出处 | http://dx.doi.org/10.1007/s11433-011-4370-5 |
| 语种 | 英语 |
| WOS记录号 | WOS:000291951500026 |
| 公开日期 | 2012-04-01 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/44920]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Jia YX,Tang ZQ,Jiang N. Experimental investigation of Reynolds stress complex eddy viscosity model for coherent structure dynamics[J]. Science China-Physics Mechanics & Astronomy,2011,54(7):1319-1327. |
| APA | Jia YX,Tang ZQ,&姜楠.(2011).Experimental investigation of Reynolds stress complex eddy viscosity model for coherent structure dynamics.Science China-Physics Mechanics & Astronomy,54(7),1319-1327. |
| MLA | Jia YX,et al."Experimental investigation of Reynolds stress complex eddy viscosity model for coherent structure dynamics".Science China-Physics Mechanics & Astronomy 54.7(2011):1319-1327. |
入库方式： OAI收割
来源：力学研究所
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