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

doi:10.1007/s42241-022-0062-z

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	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)
刊名	JOURNAL OF HYDRODYNAMICS ; 4
	2022-08
卷号	34 页码:533
关键词	Large eddy simulation (LES) turbulence-generated noise axisymmetric body of revolution SUBOFF
ISSN号	1001-6058
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.
内容类型	期刊论文
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.