Simplified permeable surface correction for frequency-domain Ffowcs Williams and Hawkings integrals

doi:10.1016/j.taml.2021.100259

IMECH-IR > 非线性力学国家重点实验室

	Simplified permeable surface correction for frequency-domain Ffowcs Williams and Hawkings integrals
	Zhou ZT(周志腾); Wang HP(王洪平); Wang SZ(王士召)
发表期刊	THEORETICAL AND APPLIED MECHANICS LETTERS
	2021-05
卷号	11 期号:4 页码:100259
ISSN	2095-0349
摘要	A simplified surface correction formulation is proposed to diminish the far-field spurious sound generated by the quadrupole source term in Ffowcs Williams and Hawkings (FW-H) integrals. The proposed formulation utilizes the far-field asymptotics of the Green's function to simplify the computation of its high-order derivatives, which circumvents the difficulties reported in the original frequency-domain surface correction formulation. The proposed formulation has been validated by investigating the benchmark case of sound generated by a convecting vortex. The results show that the proposed formulation successfully eliminates the spurious sound. The applications of the proposed formulation to flows with some special parameters are also discussed. (C) 2021 The Author(s). Published by Elsevier Ltd on behalf of The Chinese Society of Theoretical and Applied Mechanics.
关键词	FW-H integral Surface correction Quadrupole source Aeroacoustics
DOI	10.1016/j.taml.2021.100259
收录类别	CSCD
语种	英语
WOS研究方向	Mechanics
项目资助者	National Natural Science Foun-dation of China Basic Science Center Program [11988102] ; National Nat-ural Science Foundation of China [11922214, 91952301] ; National Numerical Windtunnel project
论文分区	二类
力学所作者排名	1
RpAuthor	Wang, SZ (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. ; Wang, SZ (corresponding author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
引用统计	被引频次：16[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/311007/93699
专题	非线性力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhou ZT,Wang HP,Wang SZ. Simplified permeable surface correction for frequency-domain Ffowcs Williams and Hawkings integrals[J]. THEORETICAL AND APPLIED MECHANICS LETTERS,2021,11,4,:100259.
APA	周志腾,王洪平,&王士召.(2021).Simplified permeable surface correction for frequency-domain Ffowcs Williams and Hawkings integrals.THEORETICAL AND APPLIED MECHANICS LETTERS,11(4),100259.
MLA	周志腾,et al."Simplified permeable surface correction for frequency-domain Ffowcs Williams and Hawkings integrals".THEORETICAL AND APPLIED MECHANICS LETTERS 11.4(2021):100259.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
TAML016.pdf（837KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载