Large-eddy simulation of circular cylinder flow at subcritical Reynolds number: Turbulent wake and sound radiation
文献类型：期刊论文
| 作者 | Guo L ; Zhang X(张星); He GW(何国威)
|
| 刊名 | ACTA MECHANICA SINICA
 |
| 出版日期 | 2016 |
| 卷号 | 32期号:1页码:1-11 |
| 通讯作者邮箱 | hgw@lnm.imech.ac.cn |
| 关键词 | Flows past circular cylinder Aerodynamic noise Large-eddy simulation Unstructured grid Acoustic analogy |
| ISSN号 | 0567-7718 |
| 产权排序 | [Guo, Li] China Acad Aerosp Aerodynam, Beijing 100074, Peoples R China; [Guo, Li; Zhang, Xing; He, Guowei] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| 通讯作者 | He, GW (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
| 中文摘要 | The flows past a circular cylinder at Reynolds number 3900 are simulated using large-eddy simulation (LES) and the far-field sound is calculated from the LES results. A low dissipation energy-conserving finite volume scheme is used to discretize the incompressible Navier-Stokes equations. The dynamic global coefficient version of the Vreman's subgrid scale (SGS) model is used to compute the sub-grid stresses. Curle's integral of Lighthill's acoustic analogy is used to extract the sound radiated from the cylinder. The profiles of mean velocity and turbulent fluctuations obtained are consistent with the previous experimental and computational results. The sound radiation at far field exhibits the characteristic of a dipole and directivity. The sound spectra display the power law. It is shown that Vreman's SGS model in company with dynamic procedure is suitable for LES of turbulence generated noise. |
| 分类号 | 二类 |
| 类目[WOS] | Engineering, Mechanical ; Mechanics |
| 研究领域[WOS] | Engineering ; Mechanics |
| 关键词[WOS] | Flows past circular cylinder ; Aerodynamic noise ; Large-eddy simulation ; Unstructured grid ; Acoustic analogy |
| 收录类别 | SCI ; EI ; CSCD |
| 原文出处 | http://dx.doi.org/10.1007/s10409-015-0528-0 |
| 语种 | 英语 |
| CSCD记录号 | CSCD:5660703 |
| WOS记录号 | WOS:000371242000001 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/59512]  |
| 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 | Guo L,Zhang X,He GW. Large-eddy simulation of circular cylinder flow at subcritical Reynolds number: Turbulent wake and sound radiation[J]. ACTA MECHANICA SINICA,2016,32(1):1-11. |
| APA | Guo L,张星,&何国威.(2016).Large-eddy simulation of circular cylinder flow at subcritical Reynolds number: Turbulent wake and sound radiation.ACTA MECHANICA SINICA,32(1),1-11. |
| MLA | Guo L,et al."Large-eddy simulation of circular cylinder flow at subcritical Reynolds number: Turbulent wake and sound radiation".ACTA MECHANICA SINICA 32.1(2016):1-11. |
入库方式： OAI收割
来源：力学研究所
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