| Wall-modeled large-eddy simulation of noise generated by turbulence around an appended axisymmetric body of revolution | |
Zhou ZT(周志腾) ; Xu ZY(许昭越); Wang SZ(王士召); He GW(何国威)
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| Source Publication | JOURNAL OF HYDRODYNAMICS
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| 2022-08 | |
| Volume | 34Issue:4Pages:533 |
| ISSN | 1001-6058 |
| Abstract | 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. |
| Keyword | Large eddy simulation (LES) turbulence-generated noise axisymmetric body of revolution SUBOFF |
| Subject Area | Mechanics |
| DOI | 10.1007/s42241-022-0062-z |
| Indexed By | SCI ; EI ; CSCD |
| Language | 英语 |
| WOS ID | WOS:000854860600001 |
| Funding Organization | National Natural Science Foundation of China Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics [11988102] |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | 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. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/90185 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.[Zhou, Zhi-teng 2.Xu, Zhao-yue 3.Wang, Shi-zhao 4.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China 5.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100149, Peoples R China |
| Recommended Citation 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,2022,34,4,:533.Rp_Au: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. |
| 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(4),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 34.4(2022):533. |
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| Jp2022FA222_2022_Wal（7844KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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