Wall-modeled large-eddy simulation of noise generated by turbulence around an appended axisymmetric body of revolution

doi:10.1007/s42241-022-0062-z

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	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)
发表期刊	JOURNAL OF HYDRODYNAMICS
	2022-08
卷号	34 期号:4 页码:533
ISSN	1001-6058
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.
关键词	Large eddy simulation (LES) turbulence-generated noise axisymmetric body of revolution SUBOFF
学科领域	Mechanics
DOI	10.1007/s42241-022-0062-z
收录类别	SCI ; EI ; CSCD
语种	英语
WOS记录号	WOS:000854860600001
项目资助者	National Natural Science Foundation of China Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics [11988102]
论文分区	二类
力学所作者排名	1
RpAuthor	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.
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/90185
专题	非线性力学国家重点实验室
作者单位	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
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,2022,34,4,: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(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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