Hybrid approach for simulating flow-induced sound around moving bodies based on ghost-cell immersed boundary method
文献类型：期刊论文
| 作者 | Zhao, Cheng3; Li, Hong-Gang3; Li, Xue-Gang3; Yang, Yan1,2 ; Cui, Kai1,2; Cui K(崔凯); Yang Y(杨焱)
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| 刊名 | ACTA MECHANICA SINICA
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| 出版日期 | 2024-12-01 |
| 卷号 | 40期号:12页码:14 |
| 关键词 | Flow-induced sound Immersed boundary method Moving boundary Bio-inspired locomotion Computational aero/hydro-acoustics |
| ISSN号 | 0567-7718 |
| DOI | 10.1007/s10409-024-23621-x |
| 通讯作者 | Yang, Yan(yangyan@imech.ac.cn) |
| 英文摘要 | A hybrid approach based on the immersed boundary method (IBM) is developed for computation of flow-induced sound around moving bodies. In this method, a high-fidelity direct numerical simulation (DNS) solver is used to simulate the incompressible flow field. The sound field is predicted by discretizing acoustic perturbation equations (APEs) with dispersion-relation-preserving space scheme and low-dispersion and low-dissipation Runge-Kutta time integration. A sharp-interface IBM based on ghost-cell is implemented for present two-step DNS-APE approach to deal with complex moving bodies with Cartesian grids. The present method is validated through simulations of sound generation caused by flow past a rotating cylinder, an oscillating cylinder, and tandem oscillating and stationary cylinders. The sound generated by typical kinds of complicated bio-inspired locomotions, i.e., flapping flight by wings of varied shapes and collective undulatory swimming in tandem, are investigated using present method. The results demonstrate potential of the hybrid approach in addressing flow-induced sound generation and propagation with complex moving boundaries in a fluid medium, especially for the sound characteristics of bio-mimetic flows, which might shed lights on investigations on bio-acoustics, ethology of complex animal system, and related bio-mimetic design for quietness. |
| WOS关键词 | AEROACOUSTIC SOUND ; SCHEMES ; EQUATIONS ; COMPLEX |
| 资助项目 | National Natural Science Foundation of China[52301380] ; National Natural Science Foundation of China[11602277] |
| WOS研究方向 | Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001306389600001 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/96502]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 通讯作者 | Yang, Yan |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, LHD, Beijing 100190, Peoples R China 3.Wuhan Second Ship Design & Res Inst, Wuhan 430205, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Cheng,Li, Hong-Gang,Li, Xue-Gang,et al. Hybrid approach for simulating flow-induced sound around moving bodies based on ghost-cell immersed boundary method[J]. ACTA MECHANICA SINICA,2024,40(12):14. |
| APA | Zhao, Cheng.,Li, Hong-Gang.,Li, Xue-Gang.,Yang, Yan.,Cui, Kai.,...&杨焱.(2024).Hybrid approach for simulating flow-induced sound around moving bodies based on ghost-cell immersed boundary method.ACTA MECHANICA SINICA,40(12),14. |
| MLA | Zhao, Cheng,et al."Hybrid approach for simulating flow-induced sound around moving bodies based on ghost-cell immersed boundary method".ACTA MECHANICA SINICA 40.12(2024):14. |
入库方式： OAI收割
来源：力学研究所
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