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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.
Source PublicationACTA MECHANICA SINICA
2016
Volume32Issue:1Pages:1-11
ISSN0567-7718
AbstractThe 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.
KeywordFlows Past Circular Cylinder Aerodynamic Noise Large-eddy Simulation Unstructured Grid Acoustic Analogy
DOI10.1007/s10409-015-0528-0
URL查看原文
Indexed BySCI ; EI ; CSCD
Language英语
WOS IDWOS:000371242000001
WOS KeywordFlows past circular cylinder ; Aerodynamic noise ; Large-eddy simulation ; Unstructured grid ; Acoustic analogy
WOS Research AreaEngineering ; Mechanics
WOS SubjectEngineering, Mechanical ; Mechanics
Funding OrganizationThe 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).
CSCD IDCSCD:5660703
DepartmentLNM湍流
Classification二类
RankingFalse
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/59512
Collection非线性力学国家重点实验室
Corresponding AuthorHe, GW (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
Recommended Citation
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.
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.
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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