| Large-eddy simulation of circular cylinder flow at subcritical Reynolds number: Turbulent wake and sound radiation |
| Guo L ; Zhang X(张星); He GW(何国威); He, GW (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
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| 发表期刊 | ACTA MECHANICA SINICA
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| 2016
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| 卷号 | 32期号:1页码:1-11 |
| ISSN | 0567-7718
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| 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. |
| 关键词 | Flows Past Circular Cylinder
Aerodynamic Noise
Large-eddy Simulation
Unstructured Grid
Acoustic Analogy
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| DOI | 10.1007/s10409-015-0528-0
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| URL | 查看原文
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| 收录类别 | SCI
; EI
; CSCD
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| 语种 | 英语
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| WOS记录号 | WOS:000371242000001
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| 关键词[WOS] | Flows past circular cylinder
; Aerodynamic noise
; Large-eddy simulation
; Unstructured grid
; Acoustic analogy
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| WOS研究方向 | Engineering
; Mechanics
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| WOS类目 | Engineering, Mechanical
; Mechanics
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| 项目资助者 | The authors would like to sincerely thank Prof. D You at Pohang University of Science and Technology for his discussion and advice for the present work. This work was supported by the National Natural Science Foundation of China (Grant 11232011).
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| CSCD记录号 | CSCD:5660703
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| 课题组名称 | LNM湍流
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| 论文分区 | 二类
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| 力学所作者排名 | False
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/59512
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| 专题 | 非线性力学国家重点实验室
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| 通讯作者 | He, GW (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
推荐引用方式
GB/T 7714 |
Guo L,Zhang X,He GW,et al. 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.
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| APA |
Guo L,张星,何国威,&He, GW .(2016).Large-eddy simulation of circular cylinder flow at subcritical Reynolds number: Turbulent wake and sound radiation.ACTA MECHANICA SINICA,32(1),1-11.
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| 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.
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