Wall-modeled large-eddy simulation of noise generated by turbulence around an appended axisymmetric body of revolution
文献类型：期刊论文
| 作者 | Zhou ZT(周志腾) ; Xu ZY(许昭越); Wang SZ(王士召); He GW(何国威)
|
| 刊名 | JOURNAL OF HYDRODYNAMICS
 ; 4
|
| 出版日期 | 2022-08 |
| 卷号 | 34页码:533 |
| ISSN号 | 1001-6058 |
| 关键词 | Large eddy simulation (LES) turbulence-generated noise axisymmetric body of revolution SUBOFF |
| DOI | 10.1007/s42241-022-0062-z |
| 英文摘要 | The directivity of the noise generated by turbulent flows around an underwater vehicle (the fully appended SUBOFF body) is investigated numerically, where the turbulent flows are simulated by using the large eddy simulation (LES) with a non-equilibrium wall model and the noise is calculated by using the Ffowcs Williams and Hawking formulation. The wall-modeled LES reproduces the features of turbulent flows around SUBOFF, such as the attached boundary layers around the hull, separated vortices from appendages and the wrapped vortices in wakes. The coefficients and power spectral density of the wall pressures obtained are in agreement with the previous numerical results and experimental measurements. It is found that the constructive and destructive interferences of lift and side-force dipoles lead to the deviations of the directivities of instantaneous sound pressures from the lift directions. This is different from noise generated by flows around a circular cylinder, where lift dipoles dominate the radiated noise. |
| 学科主题 | Mechanics |
| 分类号 | 二类 |
| 语种 | 英语 |
| WOS记录号 | WOS:000854860600001 |
| 资助机构 | National Natural Science Foundation of China Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics [11988102] |
| 其他责任者 | Wang, SZ ; He, GW (corresponding author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China. ; Wang, SZ ; He, GW (corresponding author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100149, Peoples R China. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/90185]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100149, Peoples R China 2.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China 3.Wang, Shi-zhao 4.Xu, Zhao-yue 5.[Zhou, Zhi-teng |
| 推荐引用方式 GB/T 7714 | Zhou ZT,Xu ZY,Wang SZ,et al. Wall-modeled large-eddy simulation of noise generated by turbulence around an appended axisymmetric body of revolution[J]. JOURNAL OF HYDRODYNAMICS, 4,2022,34:533. |
| APA | 周志腾,许昭越,王士召,&何国威.(2022).Wall-modeled large-eddy simulation of noise generated by turbulence around an appended axisymmetric body of revolution.JOURNAL OF HYDRODYNAMICS,34,533. |
| MLA | 周志腾,et al."Wall-modeled large-eddy simulation of noise generated by turbulence around an appended axisymmetric body of revolution".JOURNAL OF HYDRODYNAMICS 34(2022):533. |
入库方式： OAI收割
来源：力学研究所
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