Simplified permeable surface correction for frequency-domain Ffowcs Williams and Hawkings integrals
文献类型：期刊论文
| 作者 | Zhou ZT(周志腾) ; Wang HP(王洪平); Wang SZ(王士召)
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| 刊名 | THEORETICAL AND APPLIED MECHANICS LETTERS
 |
| 出版日期 | 2021-05 |
| 卷号 | 11期号:4页码:100259 |
| 关键词 | FW-H integral Surface correction Quadrupole source Aeroacoustics |
| ISSN号 | 2095-0349 |
| DOI | 10.1016/j.taml.2021.100259 |
| 英文摘要 | 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. |
| 分类号 | 二类 |
| WOS研究方向 | Mechanics |
| 语种 | 英语 |
| 资助机构 | 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 |
| 其他责任者 | 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. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/93699]  |
| 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 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, 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. |
入库方式： OAI收割
来源：力学研究所
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